Every morning we can see many old people ____in the park. A. exercising B. exercised C.to exercise D...
2022-11-26 15:32:59 158次 2015-2016学年甘肃敦煌市八年级下学期期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Every morning we can see many old people ____in the park.
A. exercising B. exercised
C.to exercise D. exercises
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