By the end of the month, we (finish)....... our school project.

1 By the end of the month, we (finish) will have finished our school project.

2 Helen is doing her homework right now

3 had you arrived

4 haven't replied

5 will pass

6 was cooking - was dusting

7 flies

8 will fix

Tổng hợp lý thuyết các thì trong tiếng anh: https://vndoc.com/tong-hop-cac-thi-trong-tieng-anh-cong-thuc-cach-su-dung-dau-hieu-nhan-biet-95881