Bài 2; Viết lại câu sao cho câu ko đổi nghĩa - QKĐ và QKTD

1,Ann wasn't at home when I phoned.She was in London

=>Ann....

2,I came there.They had left

=>When....

=>Before....

=>After...

=>Before the time...

3, I started to work in that company in 2000

=> I had....

4,I got home late, so I didn't see her

=>If...

_Thank you :>

1. Ann was in London when I phoned here.

⇒ Sự việc đang diễn ra thì có sự việc khác xen vào trong quá khứ. Sự việc đang diển ra dùng thì QKTD (S + was/were + Ving), sự việc xen vào dùng thì QKĐ (S + V2/ed)

2. When I cam there, they had left.

Before I came there, they had left.

After they had left, I came there.

Before the time I came there, they had left.

⇒ Sự việc diễn ra trước sự việc khác trong quá khứ. Sự việc trước dùng thì QKHT (S + had + V3/ed), sự việc sau dùng thì QKĐ (S + V2/ed)

3. I have worked in that company since 2000.

⇒ S + started/began + to V/ Ving + O + in + time

⇔ S + has/have + V3/ed + O + since + time

4. If I hadn't got home late, I could have seen her.

→ Diễn tả sự việc không có thật trong quá khứ ⇒ câu điều kiện loại 3

→ If + S + had + V3/ed, S + would/could + have + V3/ed