The children _____ on the playground when I left school.A.were playing B.are pl
题型：不详难度：来源：
The children _____ on the playground when I left school.
A.were playing
B.are playing
C. was playing |
答案
| A |
解析
试题分析：句意为：我离开学校的时候孩子们正在操场玩耍。本句表示的是过去某一时刻或某段时间正在进行或发生的动作，应用过去进行时。故选A。 |
举一反三
-–Where is your sister?
--She _________the library
A.has been to
B.is going to
C.has gone to |
We have been studying English .
A.since two years
B. since two years ago
C. for two years ago. |
—What do you often do at weekends?
—I often _________ my grandparents.| A．visit | B．visited | | C．have visited | D．will visit |
|
— What were you doing when we were playing basketball yesterday afternoon?
— I ______ the classroom.| A．was cleaning | B．have cleaned | | C．will clean | D．clean |
|
He _____ in this factory for 20 years already.| A．will work | B．works | | C．has worked | D．is working |
|
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