1 . She brought her three friends to the party, none of ________I had ever met before. (用适当的词填空)

2 . He wrote many children’s books, nearly half of________ were published in the 1990s. （用适当的词填空）

3 . 用括号内所给动词的正确形式填空或在空白处填入一个正确的关系代词/关系副词
1. The police found that the shopping mall had been broken into and a lot of valuable things__________(steal).
2. The plane __________(take) off at 10:10. That is, it is leaving in ten minutes.
3. A new library is being built now and __________(complete) next month.
4. They _________(try) every means to save the wounded soldier up to now.
5. —Can I use your phone?
—Sorry, my phone _________(use) now.
6. He bought a book the other day, ___________ author is a middle school student.
7. The reason ____________ he was late again was that he missed the first bus.
8. On the blackboard the teacher wrote a sentence, the meaning of __________I don’t understand.
9. The factory _____________ his father works is in the west of the city.
10. He is just the student _____________you want to make friends with.

4 . Mr Zhang has two daughters,both_____are famous doctors .

A．of which	B．of   who
C．of whom	D．of that

5 . It is reported that two schools,　　1　　are being built in my hometown,will open next year.

A．they both

B．which both

C．both of them

D．both of which