1 . 很明显弹奏一种乐器有很多积极的作用。（汉译英）
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2 . ______ is said that all of them have gone to the cinema.

A．What

B．It

C．As

D．That

3 . 单句改错
1. It is high time that we do something to reduce traffic accidents.
2. While having our dinner, the doorbell rang.
3. Recently our village has taken place great changes.
4. Dr Smith, together with his wife, are to arrive on the evening flight.
5. Eating at school is very convenient for students.
6. Would you please meet my uncle at the airport because this is his first time visit to the US?
7. The car hitted the old man and drived away.
8. I have two friends, their names are Tom and Jim.
9. There are many students are planting trees on the hill.
10. At weekends, we would play basketball, swimming in the pool or go for a picnic.

4 . 单句改错
1. A man immediately rushed to the girl to give him first aid.
2. It has been a long time since I did anything good for the environment.
3. No doubt money plays an important role in our daily life, but it does not mean nothing.
4. As it is known, we are what we eat.
5. They finally dropped Gina off at her parents' and made our own way home.

5 . 当我知道我做了一个简单的手势来帮助其他需要帮助的人时，我感到很满足。（汉译英）