3 . It is believed that a new kind of drug ________ by the scientists and they are hopeful that they will succeed in a couple of months.

A．has been developed	B．is being developed
C．is developing	D．has developed

4 . Currently, about 35,000 works ________ in over 300 rooms in the Louvre, and it would take a lifetime to see everything.

A．were displaying	B．are displaying
C．were being displayed	D．are being displayed

5 . They are living with their parents for the moment because their own house____________(rebuild). (所给词的适当形式填空)

6 . 请按以下规则改正下列句子中的错误，每句只有一处错误。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词作斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：每处错误及 其修改均仅限一词；
1. Why did Jim say that he can’t have simple pleasure for a while?
2. I like my music teacher for which I have great respect.
3. He can’t take the charge of the computer company because it is beyond his ability.
4. More attention should be paid to improve the quality of these products.
5. The request to buy a video for each classroom is considered at the meeting now.
6. Before the race really started, the cyclist Armstrong, as well as his teammates, were waiting at the starting line.
7. Happiness and success often come to those who are good at recognizing their own strength.
8. With many problems arise, he didn’t know how to deal with them.
9. I suggested he worked out a new plan but he didn’t respond to it.
10. He is such warm-hearted a man that he often helps others.

7 . —How messy it is! Kevin, can I come in?
—Oh, I'm so sorry. The house____.

A．is being cleaned	B．has been cleaned
C．is cleaning	D．was cleaned

8 . With more forests being destroyed, huge quantities of good earth ________ each year.

A．is washing away	B．is being washed away
C．are washing away	D．are being washed away

9 . It is reported that many a new house ________ at present in the disaster area.

A．are being built	B．were being built
C．was being built	D．is being built