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be going to的to是不是有时可以省略呢?they were going through the contant of the bag,这句就没有to.小白,求教

题目详情
be going to的to是不是有时可以省略呢?
they were going through the contant of the bag,这句就没有to.
小白,求教
▼优质解答
答案和解析
go through 穿越 be+doing were going 过去进行时
be going to 一般将来时