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 He is very popular among his students as he always tries to make them ____ in his lectures.

A.interested                 B. interesting                      C. interest                   D. to interest

 The child went home from the grammar school, their lessons ____ for the day.

A.finishing                  B. finished                   C. had finished            D. were finished

 Had I known about this computer program, a huge amount of time and energy ____.

A would have been saved      B. had been saved         C. will be saved           D. was saved

 Mark ____ have hurried.  After driving at tip speed, he arrived half an hour early. 

A.needn't                    B. wouldn't                 C. mustn't                   D. couldn't

---The weather has been very hot and dry.

---Yes. If it had rained even a drop, things would be much better now! And my vegetables ____.

A.wouldn't die B. didn't die C. hadn't died 　　　　D. wouldn't have died

 He insisted that we ____ the problem at the meeting.

A.must take up            B. take up                   C. should take                    D. took up

 ____ not for the sun, nothing could exist on earth. 

A.It were                    B. Were it                    C. If it is                            D. Is it

 After school, the teacher had the naughty boy ___ in the classroom. 

A.leave                              B. to stay                    C. living                             D. stay

 She ____ to the party if she had been invited. 

A.would go                 B. would have gone             C. had gone                 D. went

Climbing that mountain was so dangerous for you. You ____ yourself.

A.should have killed B. might have killed C. must have killed D. may have killed