题目内容
10.51.Tom works at an animal hospital everySaturday.52.Tom wants to bean animal doctor in the future.
53.Tina reads books for children in the libraryafter school.
54.Tina reads books in the libraryonce a week.
55.They plan towork in an old people's home this summer vacation.
分析 略
解答 51.Saturday 52.an animal doctor 53.after 54.once a week 55.work
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