A.We
B.You
C.I
D.Which
第2题
A.will be doing
B.have done
C.will have done
D.would do
第4题
A.how
B.when
C.what
D.if
第5题
A.the trip will be cancelled
B.you can write to Room 188"and pay later
C.you won't be able to take the trip
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