Go and when the train is leaving. [ ] A.be sure B.make sure C.be sure of D.be su
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![Go and when the train is leaving. [ ] A.be sure B.make sure C.be sure of D.be su](/pic/43_913749.jpg)
Go and ________ when the train is leaving.
[]A.be sure
B.make sure
C.be sure of
D.be sure that
试题答案
答案:B
解析:make sure意为“确信,确保”。 |