来自刘晏的问题
Whenhearrivedatthebusstop,thebus_____for20minutes.A,hasleftB,hadleftC,hasbeenawayD,hadbeenaway.
Whenhearrivedatthebusstop,thebus_____for20minutes.A,hasleftB,hadleftC,hasbeenaway
D,hadbeenaway.
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2020-05-29 21:20