Question

The boy often＿（ride）to school before he went to c

The boy often＿（ride）to school before he went to college.横线上用一般过去时还是过去完成时，理由，谢谢！

Answer 1

过去完成时
一般说来，各种时态都有特定的时间状语。与过去完成时连用的时间状语有：
1. by + 过去的时间点。如：
I had finished reading the novel by nine o'clock last night.
2. by the end of + 过去的时间点。如：
We had learned over two thousand English words by the end of last term.
3. before + 过去的时间点。如：
They had planted six hundred trees before last Wednesday.

追问

老师今天上课说是过去时……