Kh cần phải gthich nma cần đúng ạ

`1`. was cooking/ was watching

`=>` DHNB : while

`2`. was doing

`=>` DHNB : at + `2:00` pm yesterday.

`3`. was writing

`=>` DHNB : at that time

`4`. were going

`=>` DHNB : at `7` o'clock last night.

`5`. came/were having

`=>` `QKĐ` `->` when, `QKTD`

`6`. was looking

`=>` DHNB : while..

1. While I (cook) was cooking dinner, she(watch). was watching.TV.
2.1 (do) was doing my homework at 2.00 pm yesterday.
3. Tom(write) was writing this letter at that time.
4. Where .were you (go) going at 7 o'clock last night?

5.When we came (come), they (have)were having dinner.
6.Someone stole his bag while he (look)was looking the picture.

*cấu trúc câu thì hiện tại tiếp diễn :

S+ was/ were + V-ing

S+was/ were + NOT + V-ing

Was/Were +S+ V-ing...?