Look!The students are e____.Some are running and others are jumping.该填什么,

问题描述:

Look!The students are e____.Some are running and others are jumping.该填什么,

exercising锻炼

看,学生们在锻炼。一些在跑步,一些在跳跃。

应是:exercising

exercising 锻炼
注:are exercising 在锻炼
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