题目内容

______ how to pronounce the word, he stoppeda dictionary.

A. Not knowing; consult
B. knowing not; look it up in
C. Not to know; to turn to
D. Not knowing; to look it up in

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He began to try every material ______ the best way to work it out.

A. known to find
B. knowing to find
C. knowing finding
D. known finding

______is forbidden here. Who allowed ______ here.

A. Smoke; you to smoke
B. To smoke; you smoke
C. smoking; your smoking
D. Smoking; you to smoke

It‘s no use ________ me believe you.

A. trying making
B. trying to make
C. trying to force
D. to try to make

The doctors are tryinga new kind of medicine to cure the patient.

A. using
B. to use
C. use
D. used

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