题目内容

I now regret ____ school so young.

A. to leave
B. leaving
C. to have left
D. being left

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--I’m so tired. --You ____ take a rest.

A. can
B. have
C. should
D. need to

There is something wrong with my teeth. I have a _______.

A. toothache
B. headache
C. stomachache
D. heartache

Can you tell me how the accident ______?

A. came about
B. came back
C. came down
D. came from

Please help ________ to some pork.

A. myself
B. yourself
C. himself
D. itself

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