What are you doing in the park?--I’m looking at the kids _____. A.are playing tennis B.playing
问题描述:
What are you doing in the park?--I’m looking at the kids _____. A.are playing tennis B.playing
soccer
答
B
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祝你学习进步,更上一层楼!(*^__^*)】为什么不用be动词前面已经有be了,句子只允许一个谓语动词