Several days ago, a letter attracted a lot of attention on the Internet. It was written to NASA by 9-year-old Jack Davis {#blank#}1{#/blank#}(ask) to be considered for a job working with astronauts. He wrote to apply {#blank#}2{#/blank#} a planetary protection officer position at NASA. Despite his young age, he thought he would be fit for the job {#blank#}3{#/blank#} (perfect).

    With a pencil, he wrote: “I may be nine, but I think I would be {#blank#}4{#/blank#} good fit. My sister says I am an alien. Also, I.{#blank#}5{#/blank#} (see) all the space and alien movies in the past years.” Jack ended the letter stating the other {#blank#}6{#/blank#} (factor) that would make him perfect for the position, such as his great video game skills and his youth,{#blank#}7{#/blank#} would make it easy to learn to think like an alien. He then signed the letter, “Jack, Guardian of the Galaxy.”

    The position of planetary protection officer is well-paid every year. The job, however, is more about science and biology and {#blank#}8{#/blank#} (little) about fighting aliens. The officer must make sure that no new species or plants {#blank#}9{#/blank#} (bring) to other planets, and doesn't return from trips to space with anything that might harm Earth. The recent announcement of the position created in the 1960s has caused a lot of {#blank#}10{#/blank#} (excite) in the public, according to a NASA's statement.

    One day a girl was walking in the woods when she found two weak birds. She took them home and put them in a small cage. The {#blank#}1{#/blank#} (care) birds grew strong. Every morning they greeted her {#blank#}2{#/blank#} a beautiful song. The girl loved {#blank#}3{#/blank#}very much and wanted their singing to last forever.

    One day, the girl left the door to the cage open. Immediately, {#blank#}4{#/blank#} larger of the two birds flew out. The girl was afraid that it would fly away and never come back again. So when it flew close, she grasped(抓住) it wildly. {#blank#}5{#/blank#}(fortunate),  the bird died in her hand. It was her love for the bird that killed it.

    She noticed the other bird jumping the cage. She could feel its great need for    {#blank#}6{#/blank#}(free). She lifted it from the cage and {#blank#}7{#/blank#}(set) it free. The bird was flying happily in the sky, {#blank#}8{#/blank#}made the girl so glad. Just then, the bird sat softly on her shoulder and sang the {#blank#}9{#/blank#}(sweet) song she had ever hear.

     The fastest way to lose love is {#blank#}10{#/blank#}（hold） on it too tight; the best way to keep love is to give it wings（翅膀）！

    I was on my way home with a friend yesterday {#blank#}1{#/blank#} I found a mobile phone by the roadside. After picking it up, I suggested that we go to the house in front of which we found the mobile phone. And we did so. I {#blank#}2{#/blank#} (knock) at the door and two young men answered. Neither of them had lost {#blank#}3{#/blank#}(they) phones, but as I referred to some names on the contact list(通讯录), one of them said he also had those {#blank#}4{#/blank#}(name) and that it must be the phone of one {#blank#}5{#/blank#}their friends. Then, he took the phone and said how wonderful it was that I took the time {#blank#}6{#/blank#}(find) the owner. Afterwards, I left without {#blank#}7{#/blank#}(leave) my name or address. I never considered keeping the phone. Instead, I immediately tried to find {#blank#}8{#/blank#} owner. And I believed that was {#blank#}9{#/blank#}(exact) what I would want someone to do if I lost my phone. It couldn't have been {#blank#}10{#/blank#} (good).

Sometimes, helping others is just doing the right thing.

    It's so close, and yet it always seemed so far away. {#blank#}1{#/blank#}(get) to the rural district just a few hundred {#blank#}2{#/blank#}(meter) away on the other side of the bay, native people used to have to jump on a boat or drive about 160 kilometers－part of that journey on {#blank#}3{#/blank#}(dust) road.

    Now anyone wanting to get from downtown Maputo, capital of Mozambique, to Katembe, or vice versa, can do so easily, and in a matter of minutes, thanks to the longest twin­tower suspension bridge in Africa, {#blank#}4{#/blank#} hangs over Maputo Bay.

    "Mozambique had long planned to build a bridge linking the north and south of the bay, but nothing came of them because {#blank#}5{#/blank#} a lack of money and technology,"  said Wang Lijun, vice­president of China Road and Bridge Corporation (公司), which built {#blank#}6{#/blank#} bridge.

    The Maputo­Katembe Bridge, {#blank#}7{#/blank#}(open) in November after four years of construction, is part of the Maputo Bridge and Link Roads project which {#blank#}8{#/blank#}(build) by CRBC. It {#blank#}9{#/blank#}(be) 187 kilometers long and serves as an important highway that directly links Maputo to the border with South Africa, to the south.

    "By night, when the lights are on, it's {#blank#}10{#/blank#}(especial) impressive," Wang said, and as a landmark it could help develop tourism and attract overseas investment for Mozambique.

    Daisy is a girl who cares about our environment. She always longs to help {#blank#}1{#/blank#}(endanger) species of wildlife. One day, she {#blank#}2{#/blank#}(wake) up and found a flying carpet which took her to many{#blank#}3{#/blank#}(place) to experience something amazing. In Tibet, Daisy saw an antelope looking sad and it told her the species was being killed. Then the carpet showed her a place {#blank#}4{#/blank#}there was some wildlife protection. There she came across {#blank#}5{#/blank#}elephant, from whom she knew they used to be hunted {#blank#}6{#/blank#}mercy. But now good things are being done to save local wildlife. Knowing that, Daisy burst into {#blank#}7{#/blank#}(laugh) in relief. At the end of the journey, she met a monkey {#blank#}8{#/blank#}(rub) itself to protect himself from mosquitoes. The monkey asked her to pay {#blank#}9{#/blank#}(much) attention to the rainforest. Finally, Daisy {#blank#}10{#/blank#}(full) understood the meaning of no rainforest, no animals, no drugs.