题目内容

He owes his success ________his mother.

A. to
B. on
C. for
D. at

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Ten percent of the students ________ absent today.

A. is
B. are
C. is to be
D. are to be

He could not attend the meeting so his assistant took ________ him.

A. in place of
B. out of place
C. place
D. the place of

Politics ________ one of the subjects that I study.

A. are
B. is
C. were
D. have been

The poor ________discriminated in that country.

A. is
B. are
C. has been
D. is to be

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