题目内容

The gun ________ and the bullet went flying over his head.

A. went on
B. went over
C. went off
D. went for

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Surgeons have successfully ________ an artificial knee-joint.

A. planted
B. implanted
C. fabricated
D. manufactured

They failed to ________ all they set out to do.

A. accomplish
B. accompany
C. accomplish in
D. accompany with

A survey is now being ________ nationwide.A) carried inB) carried toC) carried outD) carried away

A. carried in
B. carried to
C. carried out
D. carried away

He asked Jane to marry him but she ______ his proposal.

A. turned over
B. turned down
C. turned back
D. turned against

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