MUST / MUSTN'T
PUNTUATION
SCHOOL SUBJECTS
100

Students must / mustn't be late for school.

Students mustn't be late for school.

100

its a nice bedroom

It's a nice bedroom. 

100

We write essays about society in

Math / Geography / Social studies.

We write essays about society in SOCIAL STADIES.

200

Students must / mustn't eat food in class. 

Students mustn't eat food in class.

200

helens room has pink walls

Helen's room has pink walls. 

200

We run and play games in 

English / PE  / English.

We run and play games in PE.

300

Students must / mustn't do their homework.

Students must do their homework.

300

her rooms window is small

Her room's window is small. 

300

We learn grammar, listen to CDs and talk in pairs in 

Computer science  /  Geography  /   English.

We learn grammar, listen to CDs and talk in pairs in ENGLISH.

400

Students must / mustn't use cell phones in class.

Students mustn't use cell phones in class. 

400

shes a selena gomez fan

She's a Selena Gomez fan. 

400

We read about different countries in

Geography  /  Social studies  / Computer science.

We read about different countries in GEOGRAPHY. 

500

Students must / mustn't listen to the teacher.

Students must listen to the teacher. 

500

helens family is in the photo

Helen's family is in the photo. 

500

We learn about computers and how to use them in

English  /  Computer science  /  Math.

We learn about computers and how to use them in COMPUTER SCIENCE.