1 . 他和导师的谈话让他放下了过去。
The conversation he had with his tutor helped him ________ ________ ________ the past.

2 . With his car stuck in the snow, he could do nothing but wait for help to arrive. (… all he could do was..…) (用不定式改写句子)
________________

3 . When learning to swim, firstly you’d better let your body ________ ________ the temperature.
当学游泳时，首先你最好让你的身体适应水温。

4 . The best way to learn English is ______ you ______ in an English-speaking environment.

A．let; live

B．to let; to live

C．to let; live

D．letting; living

5 . —Do you often have someone_______your clothes?
—Yes, I often have them_______.

A．wash; to wash

B．to wash; washed

C．washed; wash

D．wash; washed

6 . 单句改错
1. Suddenly Mary, my best friend, asked me to let her to copy my answers.
2. Although we allow tomato plants to grow in the same place year after year, but we have never had any disease or insect attack problems.

7 . 单句改错。
1. The librarian will let you to know when the book has been returned.
2. I lost my keys in the office so I could do nothing but to wait for my mother.
3. The boy wanted to ride his bicycle in the street, but his mother told him not to do.
4. As we all know, China is no longer the country it used to.

8 . A smile can help us ________. A smile can ________.We can use a smile ________.
微笑可以帮助我们度过难关，在陌生人的世界里找到朋友。微笑可以打破障碍。我们可以用微笑来道歉，跟某人打招呼，寻求帮助或者开始对话。

9 . His joke is ________ to make us all ________.

A．enough funny; laugh	B．funny enough; laugh
C．enough funny; to laugh	D．funny enough; to laugh

10 . 玩具工厂的创建使创造者们能够充分利用他们的天赋成为可能，而这些玩具将帮助孩子们发展创造力。(create)
The __________________ of the toy factory has made it possible __________________ to use their talents fully, and the toys will help children __________________.