2 . 当我走进房间时，他假装在看书。(汉译英)

3 . 阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。
1. Everyone should work hard and do what they can ____________(fight) against national smog.
2. ____________(observe) the problem for many years, he announced that we are facing the severe environmental problem of our time.
3. We should produce more things from materials that have been recycled, and less from raw materials, the supply of ____________ is growing smaller and smaller.
4. He travelled on the plane like this, keeping the tortoise ____________ (hide) in a blanket.
5. I remember ____________ (invite) to their party, but I have forgotten the invitation in the office.
6. I told Hannah my secret and ____________ (admit) how badly I had done in the math quiz.
7. David has done good deeds all his life, ____________ (earn) him much reputation.
8. They started shouting at each other and it turned into a horrible ____________ (argue).
9. ____________ it may feel awkward, if she really is your best friend, you should apologize for blaming her.
10. We need to stop thinking of companies and businessmen ____________the enemy and give them more credit.

4 . I’ve made some good friends with several of those students in my school ________ I met in the cross-talk show last month.

A．who

B．where

C．when

D．which

5 . The question is ________ we will have our sports meet next week.

A．that

B．if

C．when

D．whether

6 . Would you be so kind as to tell me _______ of the five policemen will be sent to Hong Kong?

A．whatever

B．which

C．what

D．Who

7 . The little boy won’t go to sleep ________ his mother tells him a bedtime story.

A．or

B．but

C．whether

D．unless