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.