An called Peter at the time that he was working on his project.→While Peter..
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1 arrived - was still sleeping
2 went - were having
3 was having - stopped
4 were crossing - saw
5 saw - was standing
6 was reading
7 were playing - came
8 rang - was taking
9 was - was working
10 went - stopped
1 have you learnt
2 I haven't visited Hue since 2003
3 I have studied English for 3 years
4 played the piano since I was 6
5 I haven't met him for 2 years
6 I have never met such a beautiful girl
7 I haven't seen her for 2 months

Cấu trúc | Dấu hiệu | Cách dùng |
(+) S + was/were + V_ing (-) S + wasn’t/weren’t + V_ing(?) (Wh) Was/Were + S + V_ing? | While, when, at that time, at + giờ quá khứ, ….. | 1. Hành động đang xảy ra tại một thời điểm xác định trong quá khứ. 2. Hai hành động song song trong quá khứ |

Sử dụng từ gợi ý để viết câu đầy đủ sử dụng thì quá khứ đơn hoặc quá khứ tiếp diễn.
1:The police/ arrive/ while/ I/ have/ breakfast.
=>The police was arriving while I was having breakfast.
2:Mary/ see/ the Queen/ while/ she/ stay/ in London.
=>Mary saw the Queen while she was staying in London.
3:I/ see/ accident/ when/ I/ wait/ bus.
=>I saw accident when I was waiting bus.
4:Rosalie/ cook/ when/ she/ cut/ finger.
=>Rosalie was cooking when she cut finger.
5:Liz and Peter/ play skipping rope/ 5 o'clock yesterday afternoon.
=>Liz and Peter were playing skipping rope at 5 o'clock yesterday afternoon.

1. While Tom (read) was reading , Amely (watch) was watching a documentary on TV.
2. Marvin (come) came home, (switch) switched on the computer and (check) his emails.
3. The thief (sneak) sneaked into the house, (steal) stole the jewels and (leave) without a trace.
4. Nobody (listen) was listening while the teacher (explain) was explaining the tenses.
5. While we (do) were doing a sight-seeing tour, our friends (lie) were lied on the beach.

viết 5 câu khẳng định , phủ định , nghi vấn với thì quá khứ tiếp diễn
Formular: S + Be(was/were) + V_ing + O
1- I was playing computer games when she called me. (+)
2- I phoned her back, but her sister said she was washing her hair. (+)
3- I found out later, she wasn’t washing her hair. (-)
4- She was talking to her new boyfriend. (+)
5- I'm so sad! What was I thinking? I should have picked up the phone! (?)

QUÁ KHỨ ĐƠN : Last night I played my guitar loudly and the neighbors complained
- Angela watched TV all night.
- I went to the beach.
he is real
he is real

Viết lại câu sử dụng hai thì quá khứ đơn và quá khứ tiếp diễn
1, She was sleeping and the fire started
She was sleeping when the fire started.
2, It began to raim and what were you doing
What were you doing when it began to raim?
3, the farmer started whishing and he was ploughting the field
The farmer started whishing when he was ploughting the field.
4, You came and what were they doing?
What were they doing when you came?
5, She was reading a book and the man came in
She was reading a book when the man came in.
6, They were working in the field and the volcano erupted
They were working in the field when the volcano erupted.
Viết lại câu sử dụng hai thì quá khứ đơn và quá khứ tiếp diễn
1, She was sleeping and the fire started
=> The fire started while she was sleeping.
2, It began to raim and what were you doing
=> What were you doing when it began to rain?
3, the farmer started whishing and he was ploughting the field
=> When the farmer started whishing while he was ploughting the field.
4, You came and what were they doing?
=> What were they doing when you came?
5, She was reading a book and the man came in
=> The man came in while she was reading a book.
6, They were working in the field and the volcano erupted
=> The volcano erupted while they were working in the field.
While Peter was working on his project, An called him