`16.` go

- Thì HTD

- DHNB: every day

`17.` was - was playing

- Thì QKTD

- DHNB: When + S + V2/V-ed, S + was/were + V-ing + ....

`18.` was working - lived

- Cấu trúc như câu 17

`19.` worked

- Diễn tả một sự việc đã xảy ra trong QK, kết thúc ở QK và ko còn liên quan đến hiện tại

- Thì QKD

`20.` has worked

- Thì HTHT

`21.` was she doing - arrived

- Cấu trúc nhìn câu 17

`22.` saw - has putting

- Câu 17

`23.` wasn't driving - happened

- Câu trúc nhìn câu 17

`24.` were arguing - came

- Câu trúc nhìn câu 17

`25.` arrived - was having. has apologised - said - dines

- Cấu trúc nhìn câu 17

- Thì HTD: always

`16.` Go

`->` Every day thuộc thì HTĐ

`17.` was - was playing

`->` Thì QKTD

`18.` was working - lived

`->` Thì QKTD

`19.` worked

`->` In 1976 thuộc thì QKĐ

`20.` has worked

`->` Thì HTHT

`21.`was she doing - arrived

`->`  Thì QKTD

`22.` saw - has putting

`->` Thì QKTD 

`23.` wasn't driving - happened

`->` Thì QKTD 

`24.`  were arguing - came

`->`Thì QKTD 

`25.`arrived - was having. has apologised - said - dines

`->` Thì QKTD 

`->` Có always thuộc thì HTĐ