1 . I ______ you about your mistakes, but I didn’t think you would listen to me.

A．could have told

B．must have told

C．should tell

D．might tell

2 . During our trip to the Great Wall last week, I couldn’t stop thinking about how huge a project it ________ have been to build it in ancient times.

A．must

B．could

C．should

D．need

3 . It ______ last night, as the ground is still wet.

A．may have rained

B．must rain

C．can’t have rained

D．must have rained

4 . Jon did a great job in the speech contest. He ________ many times last week.

A．need have practised	B．might have practised
C．must have practised	D．should have practised

5 . — Few of my fellows passed the politics quiz this time on campus.
— How come? It ________ tough.

A．should be

B．might be

C．must have been

D．would have been

7 . There were no signs that the fire had been set deliberately. It ________ by a cigarette end, I guess.

A．would have been caused	B．should have been caused
C．might have been caused	D．must have been caused

8 . — That woman has been taking care of the two white tigers for 8 years.
—Oh, dear! She _____ a lot of difficulties!

A．could go through	B．might go through
C．might have gone through	D．must have gone through

10 . The students answered all the questions correctly. She ______ full preparations.

A．must make

B．should make

C．must have made

D．should have made