三级负荷包括了排烟/排风风机、污水泵、直升电梯、自动扶梯。( )
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When he is coming ______ very important.
A. seem
B. seems
C. are
D. have
The teacher, together with his students, _____ planting trees in the street.
A. have
B. are
C. has
D. is
The writer and actor ________ invited to give us a report on Drama in China.
A. were
B. have been
C. was
D. has
融资领域被银行彻底垄断了。()
A. 对
B. 错
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