问题
填空题
用am, is, are 填空。每空一词。
1. I _____ a school boy now.
2. Those _____ his friends.
3. Here _____ my new books.
4. _____ that your sister?
5. You _____ a good boy.
答案
1. am 2. are 3. are 4. Is 5. are
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