单项选择题

Salaries for（）positions seem to be higher than for permanent ones.

A.legal
B.optional
C.voluntary
D.temporary

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单项选择题

—Is Blake still absent from class —I think he()be punished if he goes on with it.

A. will
B. must
C. can
D. shall

单项选择题

Jim borrowed a Chinese book from his classmate. He () it for three days.

A．has borrowed
B．has lent
C．has kept
D．lend

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