2 . The problems ________ (solve), the quality has been improved.(所给词的适当形式填空)

3 . A large number of paintings are collected and displayed in the British Museum, the most famous one ________(estimate) to be worth more than 80 million dollars. （所给词的适当形式填空）

4 . The party will be held in the garden, weather ________ (permit)．（所给词的适当形式填空）

5 . The guide ________ (lead) the way, we had no trouble getting out of the forest. （所给词的适当形式填空）

6 . This kind of fruit ________ lots of vitamins, vitamin D ________.

A．includes; containing	B．contains; included
C．containing; included	D．including; contained

7 . The country has already sent up three unmanned spacecraft, the most recent one____________ (launch) at the end of last year. (所给词的适当形式填空)

9 . The general situation          in Libya, the visitors from other parts of the world will not dare to visit it.

A．to be disappointed	B．disappointing
C．being disappointed	D．to disappoint

10 . The thief________ (trap) in the river for five hours, he looked very pale and exhausted. (所给词的适当形式填空)