He worked in this company （） several y...

单项选择题He worked in this company （） several years.

A.in
B.since
C.for

1.单项选择题The （）of employees in this company has doubled.

A.sum
B.amount
C.number

2.单项选择题The Europeans （）to stay ahead in aeroplane design.

A.failed
B.missed
C.lost

3.单项选择题Mary （） into the room.

A.burst
B.crashed
C.hit

4.单项选择题The war （） in 1937.

A.broke up
B.broke off
C.broke out

5.单项选择题She was sleeping with （） windows.

A.empty
B.open
C.wide

6.单项选择题Mary likes living （）.

A.lonely
B.alone
C.in person

7.单项选择题（） aeroplanes in this company are Boeing planes.

A.Most of
B.Most
C.The most

8.单项选择题You must （）your bad habits.

A.give off
B.give up
C.give out

9.单项选择题Mary is not here. She （） to Paris.

A.went
B.has gone
C.has been

10.单项选择题This question was （）difficult that no one could answer it.

A.too
B.very
C.so