填空 the man with dark glasses was watched __(enter) the building

问题描述:

填空 the man with dark glasses was watched __(enter) the building

to enter

enter (整个过程)
entering(正在进行)

to enter
带着墨镜的男人,被人盯着进入大楼

to enter
被动语态 必须加上to

to enter
be watched to do sth.被动语态结构
不明白的再问哟,请及时采纳,多谢!

to enter (走进了)
entering(正走进)
都可以

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