单项选择题

The workers are practising ______ a new song for the coming evening party of the New Year's Eve.

A. to sing
B. to be singing
C. singing
D. being sung
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单项选择题
The students expected there ______ more reviewing classes before the final exams.
A. is
B. being
C. have been
D. to be
单项选择题
The trade unions in this industry are ______ any reduction in wages.
A. objected against
B. opposed to
C. reacted to
D. resisting against
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