问题
填空题
用be动词的适当形式填空。
1. _____ they new or old?
2. _____ this pair of pants white?
3. The paper _____ white.
4. Jenny and I _____ good friends.
5. I _____ your classmate.
答案
1. Are 2. Is 3. is 4. are 5. am
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