This change ________ under less favorable conditions.

[　　]

A．couldn’t take place

B．wouldn’t take place

C．wouldn’t have taken place

D．haven’t taken place

I would do it in a different way ________ it.

[　　]

If we ________ birth control earlier, China ________ such a large population.

[　　]

A．had begun; wouldn’t have

B．had begun; wouldn’t have had

C．began; wouldn’t have

D．should begin; wouldn’t have had

　　－What do you think of the food here?

　　－Oh, wonderful! We ________ a better place.

[　　]

A．won’t find

B．mustn’t have found

C．can’t find

D．couldn’t have found

There is nothing left. I wish I ________ so much money on clothes.

[　　]

　　－I’d like to get a job in that computer shop.

　　－I would much rather you ________ at home and ________ care of the children.

[　　]

Even though he ________ here, he ________ able to help us then.

[　　]

A．was; was not

B．were; were

C．hadn’t been; wouldn’t have been

D．had been; wouldn’t have been

________ good preparations, we might have succeeded.

[　　]

We had a ceremony ________ those killed in the battle.

[　　]

The snake is rolling ________ on the ground.

[　　]