AIDS is said _________ the biggest health challenge to both men and women in that area over the past few years．

that it is

to be

that is has been

to have been

_________ fired, your health care and other benefits will not be immediately cut off．

Would you be

Should you be

Could you be

Might you be

She went to the bookstore and bought _________．

dozen books

dozens books

dozen of books

dozens of books

_________ he come, the problem would be settled．

Would

Should

Shall

If

_________ to do the work, I should do it some other day．

If were I

I were

Were I

Was I

If you _________ that movie last night, you wouldn’t be so sleepy．

haven’t watched

didn’t watch

hadn’t watched

wouldn’t have watched

I do not have a job．I would find one but I _________ no time．

had

didn’t have

had had

have

If I _________ you, I _________ more attention to English idioms and phrases．

was; shall pay

am; will pay

would be; would pay

were; would pay

If an earthquake _________ occur, the old buildings would fall down easily, which is sure to cause large numbers of deaths．

would

will

is going to

were to

It is time _________, but three of us haven’t turned up yet．

have meeting

to have meeting

that we had our meeting

for meeting