题目内容

Read and write. (根据主语人称用be动词的正确形式填空)
1. What ______ you doing? I ______ sleeping.
2. Where _______ they?
3. I ______ fine. Thank you.
4. Mom, there ______ a call for you.
5. The snow _______ falling. Winter ______ here.
l. are; am   2. are   3. am   4. is   5. is; is
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