问题补充:
The old man was seen in the park at 7:00 a.m. yesterday.
A. exercise
B. exercised
C. to exercise
D. exercising
答案:
A. exercise
B. exercised
C. to exercise
(答案→)D. exercising
解析:在主动语态中,see sb doing/see sb do ,本题是被动语态,表示在昨天的7点,正在进行的动作,故选D
时间:2021-02-13 10:46:44
The old man was seen in the park at 7:00 a.m. yesterday.
A. exercise
B. exercised
C. to exercise
D. exercising
A. exercise
B. exercised
C. to exercise
(答案→)D. exercising
解析:在主动语态中,see sb doing/see sb do ,本题是被动语态,表示在昨天的7点,正在进行的动作,故选D
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2024-07-19