用所給詞的適當形式天空。
1. John has two ______ (knife) .
2. The pen isn't mine. It's ______ (she).
3. What color are ______ (this) coats?
4. My friend and I ______ (be) students.
5. What ______ (do) he look like?
1.knives     2. hers    3.these     4. are      5. does
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