the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to

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the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to
the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to

the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to
2在那时用过去进行时态

The students _____the stick at that time
1.are passing on 2.were passing on 3.pass on 4.past to
选2
因为at that time 是【那时“正在传递”棍子】

at that time 在当时 表示时态是在过去的 所以要选2 were passing on 过去传递……
希望对你有帮助哦~

选2. were passing on
因为有 at that time 表示过去了的时间(那时);
所以应该用过去现在时。

望采纳。

句子中时间状语为 at that time,表明过去,就在过去那一刻正在进行的动作用过去进行时 were passing on.