1. He (sit) _______was sitting_______ in a bar when I (see) ______saw_______ him.

2. The light (go) _____went_____ out while I (have) _____was having_________ tea.

3. While he (learn) ______was learning________ to drive, he (have) ________ was having ______ an accident.

4. We (walk) _______ were walking_______ to the station when it (begin) ______began________ to rain.

5. He (have) ______was having________ a bad fall when he (repair) ______repaired________ his roof.

6. It (start) _______ was starting_______ to rain when we (play) ______played ________ football in the schoolyard yesterday.

7. The servant (drop) ______dropped________ two cups while she (wash up) ______was washing________ up last night.

8. While he (write) _______was writing_______ a letter, the telephone (ring) 

_______rang_______.

g/tchung:when/while + QKĐ , QKTD (1 hành độngđang xảy ra thì có 1 hành động khác xen vào)

______________________________________________________

học tốt!

:)

1. was sitting / saw

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

2. went / was having

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

3. was learning / had

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

4. were walking / began

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

5. had / was repairing

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

6. started / were playing 

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

7. dropped / was washing

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

8. was writing / rang

Thì quá khứ tiếp diễn : S + was/were + V-ing (+ O)

Thì QKĐ : S + V-ed 

when/while + QKĐ , QKTD

5 sao + cảm ơn + ctlhn