10. You don't have to finish the work today.

not have to + V1: không phải làm gì 

11. Tim's collection has over eight hundred stamps.

S + has/have+  N 

12. What is your father's age?

What +be+  one's + age? hỏi tuổi 

13. What is the height of Big Ben Clock Tower?

What + be+ the + N of N ?

14. How heavy is your son? / How much does your son weigh? 

How +ADJ + be+  S? 

How much + do/does + S+ weigh? hỏi cân nặng 

15. How much does this face mask cost?

How much + do/does + S + cost? hỏi giá tiền 

16. What is the length of the Me Kong River?

What + be+ the + N of N ?

`color{orange}{~MiaMB~}`

1 have to finish the work today.

- It isn't important + (for O) + to V-inf: Không quan trọng (cho ai đó) làm việc gì.

- = S + do/does + not + have to V-inf: Ai đó không cần làm gì

2  has over eight hundred stamps.

- There + be + N.

- = S + have/has + N.

3  is your father's age?

- How + adj + be + S?

- What + be + one's + N?

4 is Big Ben Clock Tower's height?

5 How heavy is your son?

6  How much does this face mask cost?

- Hỏi giá tiền:

+ What is the price of + S?

+ How much + do/does + S =cost?

7 is Me Kong river's length?