In China, a site that amazed me was one {#blank#}1{#/blank#} (provide) by nature—the Hukou Waterfall on the Yellow River, the mother river of the country.

    The Yellow River was a main source of transportation in the past. Many ports and bridges were built and destroyed by the river's strong current(水流), and it was {#blank#}2{#/blank#} (challenge) for the locals back then to build a bridge {#blank#}3{#/blank#} was strong enough to withstand(承受) the current of the Yellow River.

    About 1,500 years ago, the locals of Puzhou, which is now Yongji,{#blank#}4{#/blank#} (make) several iron oxen anchors, each {#blank#}5{#/blank#} (weigh) more than seventy metric tons to hold a floating bridge across the Yellow River. It was amazing to see these{#blank#}6{#/blank#} person and I was astonished by the {#blank#}7{#/blank#} (wise) and workmanship of people back then.

    The hotels that {#blank#}8{#/blank#} (arrange) for us to stay in were among the best in each city we visited, which sums up {#blank#}9{#/blank#} China was shown to me, with sights both beautiful and amazing {#blank#}10{#/blank#} kind and helpful people.

    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.

    I am Adam Rouse. I first {#blank#}1{#/blank#} (buy) cannabis from a man in the street and continued to buy cannabis from{#blank#}2{#/blank#} (he) for six months and as a result, I got addicted {#blank#}3{#/blank#} it. One day, the man offered me some crack cocaine, a more {#blank#}4{#/blank#}（power）addictive. When I went back to the man for more crack cocaine, he asked me for a lot of money. I was in terrible pain when I couldn't afford to buy any drugs. {#blank#}5{#/blank#} (get) money, I broke into{#blank#}6{#/blank#} house and stole something to sell for money. The more drugs I took, the more addicted I became. So I had to steal something every day to pay for the drugs. One day, I{#blank#}7{#/blank#}（catch）stealing and sent to the police station. The next day, a doctor came to see me and told me that I could die {#blank#}8{#/blank#} I couldn't stop taking drugs. I took his advice and stopped {#blank#}9{#/blank#}(immediate). Now I work in a center for drug addicts, {#blank#}10{#/blank#} (help) others to stop taking drugs.

    The Moon's near side, the one we all see, has been the target of many robotic and human missions. However, its far side, also {#blank#}1{#/blank#} (call)the dark side because it faces away from the Earth and little {#blank#}2{#/blank#} (know)about it, has never been explored. That changed on Jan.2, 2019, when Chinese spacecraft Chang'e 4 made a soft landing on {#blank#}3{#/blank#} is often referred to as the dark side.

    The landing is {#blank#}4{#/blank#} example of China's growing desire {#blank#}5{#/blank#} (compete)with the American, Russian and European space programs. China also wants to {#blank#}6{#/blank#} (strength)its position as a regional and international power.

    One of the great {#blank#}7{#/blank#} (difficulty)in exploring the far side of the Moon is that it blocks all radio signals, {#blank#}8{#/blank#} (make)it impossible to communicate with the Earth. To overcome this difficulty, in 2017, the Chinese National Space Administration launched a satellite to orbit the Moon and relay the signals. Once a {#blank#}9{#/blank#} (rely)communication path was in place, Chang'e 4 could send back information.

    Chang'e 4 will make astronomical observations and examine the structure and mineral composition of the ground above and below the surface, {#blank#}10{#/blank#} researchers believe will provide insights into the solar system's early days and perhaps even the origin of the first stars.

    It is back to school time in much of the world. Calm, easy mornings {#blank#}1{#/blank#} (replace) with busy, hurried ones. Children wake up early and get ready for school. Many parents are also getting ready for work, {#blank#}2{#/blank#} (help) their children and preparing food for lunches. But, don't forget about breakfast!

    When things get {#blank#}3{#/blank#} (wild) busy in the morning, some people skip breakfast to save time. But that may be a big mistake for students. {#blank#}4{#/blank#} at home, on the way to school or at school, eating something healthy for breakfast may help a student get better grades. That is the finding of a 2015 study {#blank#}5{#/blank#} Cardiff University in Wales. Researchers there found the students who ate a healthy breakfast were twice as likely {#blank#}6{#/blank#} (perform) above average in educational activities. The researchers also found unhealthy breakfasts-such as potato chips or a donut did not appear helpful to educational performance.

    In 2013, {#blank#}7{#/blank#} organization in the United States, also looked at possible {#blank#}8{#/blank#} (connect) between breakfast and student success in school. The Share Our Strength's campaign, No Kid Hungry, {#blank#}9{#/blank#} (find) on average students who ate breakfast attended 1.5 more days of school per year. These students also scored 17.5 percent {#blank#}10{#/blank#} (high) on standardized math tests.