Since nobody gave him any help，he________have done the research on his own.
| A．can | B．must |
| C．would | D．need |
—You needn’ t take an umbrella.It isn’t going to rain.
—Well，I don’t know.It________do.
| A．might | B．need |
| C．would | D．should |
No one ________be more generous; he has a heart of gold.
| A．could | B．must |
| C．dare | D．need |
—What are you doing this Saturday?
—I’m not sure，but I________go to the Rolling Stones concert.
| A．must | B．would |
| C．should | D．might |
I ________ myself more－it was a perfect day.
| A．shouldn’t have enjoyed |
| B．needn’t have enjoyed |
| C．wouldn’t have enjoyed |
| D．couldn’t have enjoyed |
Harry is feeling uncomfortable.He ________too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
—Why are your eyes so red? You________have slept well last night.
—Yeah，I stayed up late writing a report.
| A．can’t | B．mustn’t |
| C．needn’t | D．won’t |
It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may | B．couldn’t |
| C．should | D．needn’t |
When I was a child，I________watch TV whenever I wanted to.
| A．should | B．could |
| C．must | D．need |
The children________lost in the woods；otherwise，they would have been at the lakeside camp as scheduled.
| A．must have got | B．must get |
| C．should have got | D．should get |
If we________a table earlier，we couldn’t be standing here in a queue.
| A．have booked | B．booked |
| C．book | D．had booked |
If he had spent more time practising speaking English before，he________ able to speak it much better now.
| A．will be | B．would be |
| C．has been | D．would have been |
—It rained cats and dogs this morning.I’ m glad we took an umbrella.
—Yeah，we would have got wet all over if we________.
| A．hadn’t | B．haven’t |
| C．didn’t | D．don’t |
Eye doctors recommend that a child’s first eye exam ________ at the age of six months old.
| A．was | B．be |
| C．were | D．is |
—Do you think George has passed the driving test?
—No.If so，he ________his car to our college yesterday.
| A．would drive | B．drove |
| C．would have driven | D．had driven |
I________ to my cousin’s birthday party last night，but I was not available.
| A．went | B．had gone |
| C．would go | D．would have gone |
I should not have laughed if I________ you were serious.
| A．thought | B．would think |
| C．had thought | D．have thought |
My mom suggests that we________eat out for a change this weekend.
| A．should | B．might |
| C．could | D．would |