5.　　 Remember ___ the door. I’ve lost the key ___ the lock.

A.　 not to lock, for　 B. not to lock, to

B.　 not locking, to　 D. not locking, of

4.　　 This kind of bicycle ___ in the shop near our school .

A.　 sells　 B. sell　 C. has sold　 D. is sold

3.　　 ___ of us knows a lot about this country .

A.　 None　 B. No one　 C. Nor　 D. nobody

2.　　 Doctors ___ in every part of the world .

A.　 need　 B. are needing　 C. are needed　 D. will need

1.　　 ___ of the food was left .

A.　 Two-third　 B. Second-third　 C. Two-three　 D. Two-thirds

11.　 I think English is very ______________ (use), too.

10.　 　Three quarters of the _________________ (world) books are written in English .

9.　　 China is one of the _______________ (large) countries in the world .

8.　　 He spoke very ________________ (clear), so it was easy to follow him .

7.　　 ______________ (travel) also use computers.