Life today is much{#blank#}1{#/blank#} . However, there are new problems. One of the biggest ones is pollution. Water {#blank#}2{#/blank#} has made rivers dirty. It kills fish and {#blank#}3{#/blank#}  our drinking water. Noise pollution makes us speak {#blank#}4{#/blank#}  and become angry more {#blank#}5{#/blank#} . Air pollution is the {#blank#}6{#/blank#} serious kind of pollution. It's bad for all {#blank#}7{#/blank#}  things in the world.

    Mark is my brother's good friend．He is a student in a{#blank#}1{#/blank#}school．He is clever．When he was six，he{#blank#}2{#/blank#}to go to school．At school he is good at all his subjects．He can speak two{#blank#}3{#/blank#}，Chinese and English．And he speaks them very well．He likes making {#blank#}4{#/blank#}．And he likes flying them．One week ago， he，my brother and I went{#blank#}5{#/blank#}in the mountains．That day we had a great time there．

    Walking down the city streets, you look up and see a red telephone box. Behind it, on the road, a big red double-decker bus {#blank#}1{#/blank#} by, carrying citizens and tourists. This is London. And the red bus has been a {#blank#}2{#/blank#} of the city.

    Modern transportation has changed the way we live. One important kind of transport has been the bus. In London, buses play a {#blank#}3{#/blank#} role than other kinds of transport. They are {#blank#}4{#/blank#} to go around the city. Red tourist buses have open roofs, which let people {#blank#}5{#/blank#} many photos as they drive past Big Ben, the Thames, the London Eye, {#blank#}6{#/blank#} so on.

But how did the bus become special to London culture? Horse-drawn buses have been used in London {#blank#}7{#/blank#} 1829. By the early 20^th century, motor-buses were driving around London. Bus companies used different {#blank#}8{#/blank#} at that time. The biggest company chose red. In 1933, when London transport was grouped into a single company, they chose {#blank#}9{#/blank#} most widely used color at that time—red.

    And so the color red stayed in London. But it was during the mid-1950s that the red double-decker was born. All of them were built {#blank#}10{#/blank#} 1954 and 1968. That is why they still look traditional.

A: {#blank#}1{#/blank#} are you?

B: {#blank#}2{#/blank#} fine, thanks.

A: {#blank#}3{#/blank#} this in English?

B: It's a {#blank#}4{#/blank#}.

A: {#blank#}5{#/blank#} it, please.

B: R-U-L-E-R.

A: What {#blank#}6{#/blank#}is it?

B: It's {#blank#}7{#/blank#}.

A: Red? It's nice. {#blank#}8{#/blank#} what's this?

B:  It's {#blank#}9{#/blank#} pen.

A: What color is it?

B. It's {#blank#}10{#/blank#}.