1. The man had left before we arrived at the place -> By the time ....................................................

Cách làm:
1. Xác định thời gian trong câu gốc là "before we arrived at the place", đổi sang mệnh đề thì quá khứ hoàn thành "had left".
2. Dùng cấu trúc "By the time + mệnh đề quá khứ hoàn thành" để viết lại câu.

Câu trả lời:
1. By the time we arrived at the place, the man had left.
2. By the time we got there, the man had already left.

By the time we reached the location, the man had already gone.

By the time we got there, the man had already departed.

By the time we arrived at the place, the man had already left.