I last saw him when I was a student.

• Viết cách khác: The last time I saw him was when I was a student.
• Dạng rút gọn: I haven't seen him since I was a student.

I haven't

• Cần có câu hoàn chỉnh: Bạn muốn bổ sung gì vào câu này? Ví dụ: I haven't seen him for a long time.

A child was swimming across the Saigon River.

• Viết cách khác: The child swam across the Saigon River.

I saw

• Cần có câu hoàn chỉnh: Bạn muốn bổ sung gì vào câu này? Ví dụ: I saw a beautiful sunset yesterday.

The workers working in America factories learnt English in 6 months.

• Viết cách khác: The workers in American factories learned English in 6 months.

I'm sorry I missed your birthday yesterday.

• Viết cách khác: I wish I could have been at your birthday party yesterday.

They arrived late because the traffic was terrible.

• Viết cách khác: Because of the terrible traffic, they arrived late.

The students continued to talk about the party.

• Viết cách khác: The students kept talking about the party.

I can't swim as well as Tom.

• Viết cách khác: Tom can swim better than me.

The old man is expecting with pleasure the visit of his grandchildren.

• Viết cách khác: The old man is looking forward to seeing his grandchildren.

It is a six-hour drive from London to Edinburgh.

• Viết cách khác: It takes six hours to drive from London to Edinburgh.