the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to
问题描述：
the students _____the stick at that time 1.are passing on 2.were passing on 3.pass on 4.past to
答
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……
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答
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。
答
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.
答
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】
答
2在那时用过去进行时态