at the airport, he telephoned his wife. [ ] A. Once arriving B. Upon arriving C.
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![at the airport, he telephoned his wife. [ ] A. Once arriving B. Upon arriving C.](/pic/43_776159.jpg)
________ at the airport, he telephoned his wife.
[]A.Once arriving
B.Upon arriving
C.As soon as reaching
D.When getting
试题答案
答案:B
解析:on/upon doing…意为“一……就……”。 |