John would be taking a great risk if he _____ his money in that business.

A. would invest

2.   invested

C. had invested

D. invests

If I _____, I would express my feelings.

A. were asked

2.   would ask

C. had been asked

D. asked

I wanted_____ by the head of the company, but it was impossible.

A. to see

B  to be seen

C. seeing

D. being to see

All planes_____ before departure.

A. will checked

B  will has checked

C. will be checked

D. will been checked

_____ that military spending is extremely high.

A. We are felt

B  It feels

C. It is felt

D. We feel that it is

Gold_____ in California in the nineteenth century.

A. was discovered

2.   has been discovered

C. was discover

D. they discovered

_________ my father is old, he still goes jogging.

A. Although

2.   Because

C. So that

D. Despite

It_____ rain this evening. Why don't you take an umbrella?

A. could be

2.   must

C. might

D. had better

I would have visited you before if there _____ quite a lot of people in your house.

A. hadn't

B hadn't been

C. wouldn't be

D. wasn't

This exercise is very boring. I wish the teacher ______ us some more interesting things to do.

A. gave

B  would give

C. had given

D. will give