题目内容
6.听第二段对话,回答第13-15小题.13.What did Mary want to give back to Fred?
A.His keys. B.His glasses. C.His jackets.
14.What did Fred do with his group?
A.They planted trees. B.They cleaned the street. C.They did some shopping.
15.How many times has Fred planted trees with his group?
A.Once. B.Twice. C.Three times.
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