It Mike and Mary who helped the old man several days ago． [ ] A．was B．are C．were
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It ________ Mike and Mary who helped the old man several days ago．
[]A．was
B．are
C．were
D．had been
试题答案
答案：A
It ________ Mike and Mary who helped the old man several days ago．
[]A．was
B．are
C．were
D．had been
答案：A