题目内容
5.Conversation 510.What's the probable relationship between the two speakers?
A.Strangers.B.Classmates.C.Mother and son.
11.How many school buses are there altogether?
A.2 B.3 C.4
12.How long does the woman have to wait for the bus?
A.20 minutes.B.30 minutes.C.40 minutes.
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