【单选题】They happened to ______for Tianjin when we got there.
【多选题】按照网络应用的发展,电子商务发展阶段可以分为
【单选题】They us willingly but they happened to be short of hands, too.
【单选题】They _____ us willingly but that they happened to be short of hands, too.
【单选题】They______ us willingly but that they happened to be short of hands, too.
【判断题】The narrator met Dacre when they happened to be conducting researcher in the same room in the British Museum.
【单选题】They happened to__________ for Tianjin when we got there.A.leaveB.have left###SX
A.
They happened to__________ for Tianjin when we got there. A.leave