A:what are you doing in the park B:I am looking at the children They___volleyball

问题描述:

A:what are you doing in the park B:I am looking at the children They___volleyball
A.plays B.are playing C.playing D.to play 选B还是C?

B.are playing
你在公园做什么?
我在看这些孩子,他们正在打排球.
根据句子的意思 是正在打排球,故用are playing