Tìm x là số nguyên để mỗi phân số sau nhận giá trị nguyên 

Tìm x là số nguyên để mỗi phân số sau nhận giá trị nguyên 

Rewrite the sentence using the word in brackets.

1. It’s impolite of them to wear hats in the pagoda. (shouldn’t)

     ……………………………………………………………………………….

2. Children have to live with their parents until they reach the age of 18. (obliged)

     ……………………………………………………………………………….

3. Is it necessary for me to tip in a coffee shop? (have to)

     ……………………………………………………………………………….

4. It’s not mandatory for staff to wear vests in their company. (need)

     ……………………………………………………………………………….

5. It’s good for us to keep our traditional customs. (should)

     ……………………………………………………………………………….

6. It’s really important to remove your shoes when entering a temple. (must)

     ……………………………………………………………………………….

7. Photography is not allowed at some sacred places. (mustn’t)

     ……………………………………………………………………………….

8. It’s Saturday tomorrow, so it’s not necessary for Jane to get up early. (have to)

     ……………………………………………………………………………….

9. If I were you, I’d ask them about their customs. (should)

     ……………………………………………………………………………….

10. Why don’t we look for the information on the Internet? (how)

…………………………………………………………………………………..