问题描述：
用正确的be动词（am,is,are,were）填空.
1.They______unhappy yesterday.
2.The students______free today.They______going to play in the park
this afternoon.
3.His mother______ill yesterday.She ______better now.
4.Where ______ you last night?I______at the office.
5.______Jim and Kate at school yesterday afternoon?Yes,they______.
1.They______unhappy yesterday.
2.The students______free today.They______going to play in the park
this afternoon.
3.His mother______ill yesterday.She ______better now.
4.Where ______ you last night?I______at the office.
5.______Jim and Kate at school yesterday afternoon?Yes,they______.
问题解答：
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