题目内容
用Be动词的适当形式填空。
1. How long _____________ your arms?
2. She _____________ going to play computer games in the evening.
3. Mary and Sarah _____________ my friends.
4. Cat _____________ an animal.
2. She _____________ going to play computer games in the evening.
3. Mary and Sarah _____________ my friends.
4. Cat _____________ an animal.
1. are 2. is 3. are 4. is
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