Must - mustn't

Students ....... wear uniform at school.

• A. mustn't

• B. must

• C. are

• D. must be

S + should/ shouldn't + ...................

• to V_inf

• V_inf

• V_ing

"Should" được dùng để ........................

• diễn tả những bắt buộc mang tính chủ quan

• diễn đạt sự bắt buộc mang tính khách quan

• đưa ra lời khuyên ai đó nên làm gì.

Khi dùng not sau must, viết tắt là mustn’t diễn đạt làm điều gì đó là ....................

• không cần thiết

• không nên

• không được phép

You .................. follow your school and class's rules.

• must/ have to

• mustn't

• don't have to

You ................. give and take things with your right hands in India.

• should

• have to

• must

In Singapore, you .............. feed the birds in the street or you will get a fine of $500.

• mustn't

• don't have to

• shouldn't

She ................... get up ealy on Monday. She want to do a lot of thing on this day.

• Must to

• Must

You look really tired. You _________ take a few days off and have a holiday.

• a. should

• b. must

• c. have to

• d. can

Rewrite the sentences using “should/ shouldn’t”.

Don’t touch this switch.

-> This switch ..............................................................................