I saw they were running down the street last night.

题目

I saw they were running down the street last night.
=I saw _ _ down the street last night.
The boss made the workers work sixteen hours a day.
=The workers _ _ to work sixteen hours a day.
He teachs 60 students tis year.=60 students _ _ by him.

答案

你好,应该是：
1 them running
2 were made
3 are taught
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