It was playing computer games that cost the boy plenty of time that he ________ have spent doing his lessons．

A．might

B．must

C．ought to

D．could

－I didn't go to work yesterday afternoon because my car broke down．

－You ________ mine．I wasn't using it．

A．might borrow

B．could have borrowed

C．must have borrowed

D．ought to borrow

Why didn't you tell me there was no meeting today?I ________ have driven all the way here through the heavy snow．

A．needn't

B．can't

C．mustn't

D．couldn't

－________ I return the dictionary within three days?

－No, you ________．You ________ keep it for five days．

A．May; needn't; will

B．Can; mustn't; would

C．Must; don't have to; can

D．Shall; can't; should

She can't help ________ the house because she's busy making a cake．

A．to clean

B．cleaning

C．cleaned

D．being cleaned

－I've never found a better job．

－________．

A．I don't think so

B．Too bad

C．Congratulations

D．Don't worry

－Alice, you feed the bird today, ________?

－But I fed it yesterday．

A．do you

B．will you

C．didn't you

D．don't you

－Please don't make a noise．

－________．I'll be as a quiet as a mouse．

A．Yes, I do

B．No, I don't

C．Yes, I will

D．No, I won't

It's a fellow's duty to ________ the good things of this world ________ his neighbours．

A．compare; with

B．combine; with

C．share; with

D．trade; with

The number of people invited ________ fifty, but a number of them ________ absent for different reasons．

A．were, was

B．was, was

C．was, were

D．were, were