单项选择题

The chemistry teacher asked the pupils what water was ______ of.

A. consisted
B. compounded
C. composed
D. conceived
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单项选择题
I remember （）to help us if we ever got into trouble.

A. once offering
B. him once offering
C. him to offer
D. to offer him
单项选择题
He is （）in his mind.

A. cheerful
B. merry
C. glad
D. joyful
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