1 what is the length of hoan kiem lake?

3 it took me 3 hours to write this essay

4 do you know where is the post office, nam?

5 it is a forty-five.

6 quang has become the youngest of three. 

7 i do not work as hard as my brother

8 the toothache prevented lan from enjoy the meal

sorry bạn vì mình ko biết làm câu 2

1 -How wide is Hoan Kiem Lake?

What is the width of the Hoan Kiem Lake?

2 I prefer listening to music at home to going to the concert

I like listening to music at home than going to the concert.

3 I wrote this essay in three hours

It took me to write an essay in three hours.

4.Where is the post office, Nam?

Do you know the way to the post office, Nam?

5.It's one forty-five?

It's a quarter to fifteen.
6 Quang is the youngest of the three brothers

Quang has three brothers.

7.My brother is more hard-working than me

I don't hard-working as my brother.

8 Lan couldn't enjoy the meal because of the toothache

The toothache prevented Lan from enjoying the meal.