1 . What would have happened, ________ Bob walked farther, as far as the river bank? （用适当的词填空）

2 . ________ he seen you yesterday, he _____________ your book.

A．Has; will have returned	B．Had; will have returned
C．Had; would have returned	D．Has; would have returned

3 . I ______ sooner, but I didn’t know he was waiting for me.

A．would come

B．had come

C．would have come

D．was coming

4 . Had Tom taken medicine just as the doctor said yesterday, he_______ quite right now.

A．must have been	B．would have been
C．were	D．would be

5 . _____ smoking, he would not have got cancer in the lung.

A．Was he given up	B．Had he given up
C．Did he give	D．If he gave up

6 . ___________it__________to rain tomorrow, the sports meet would be put off until the same time next week.

A．Should, /

B．If, should

C．Were, /

D．If, were going.

7 .         tomorrow , we would put off the match till next Monday.

A．Should it rained	B．Were it to rain
C．If it would rain	D．Had it rained