1. We arrived too late to see the first film.

⇒ We didn’t arrive early enough to see the first film.

2. He wrote the letter in two hours.

⇒ It took him two hours to write the letter.

3. I haven’t been to the dentist’s for two years.

⇒ It’s 2 years since I went to the dentist.

4. This is the most delicious cake I have ever tasted.

⇒ I have never tasted a more delicious cake than this one

5. They bought this house ten years ago.

⇒ They have owned this house for ten years.

6. The plane had hardly left the airport when the accident happened.

⇒ No sooner had the plane left the airport than the accident happened.

7. When did you start the project?

⇒ How long have you started the project?

8. I last saw Bob when I was in Ho Chi Minh City.

⇒ I haven’t seen Bob since I was in Ho Chi Minh City.

9. It is a three-hour drive from Hanoi to Namdinh.

⇒ It takes three hours to drive from Hanoi to Namdinh

10. When did you first know him?

⇒ How long have you know him?

1. We didn’t arrive early enough to see the first film

2. It’s took him two hours to write the letter.

3. It is 2 years since I went to the dentist

4. I have never tasted a more delicious cake than this before

5. They have owned this house for ten years.

6. No sooner had the plane left the airport than the accident happened.

7 . How long is it since you started the project

8 . I didn't see Bob since I was in Ho Chi Minh City.

9. It takes three hours to drive from Hanoi to Namdinh.

10. How long have you know him?