Rewrite the rules.Use: can, can’t, must, mustn’t.
It’s OK to bring your bike.
You can bring your bike.
You must/mustn’t walk on the grass.
You mustn’t walk on the grass.
The sun rises in the east. You must wake up early to see the sunrise.
TRUE
The sun rises in the east. You must wake up early to see the sunrise.
after school / can / study / in the library / students.
Students can study in the library after school.
dance
e.g. I can dance hip-hop. / I can't dance salsa.
It’s OK to come in a group of up to eight people.
You can come in a group of up to eight people.
You can't/must listen to the teacher.
You must listen to the teacher.
Water freezes at 0 degrees Celsius. You can't drink water when it is frozen.
TRUE
Water freezes at 0 degrees Celsius. You can't drink water when it is frozen.
if / you / interested / join / the / club / can / you / music / are / in
smile
e.g. I can give a big smile. I can't smile.
It’s very important to come with an adult.
You must come with an adult.
People can't/mustn't run as fast as a cheetah.
People can't run as fast as a cheetah.
A triangle has three sides. You can draw a triangle with one side.
FALSE
A triangle has three sides. You can't draw a triangle with one side.
something / for help / ask / their teachers / if / they / understand / don't / can students
Students can ask their teachers for help if they don't understand something.
wave my hand
e.g. I ca wave my hand. / I can't wave my hand.
It’s important that you don’t stay in the park overnight
You mustn't stay in the park overnight.
If you forgot your pen, you can ask your classmate.
Birds can fly. They can fly too high in stormy weather.
FALSE
Birds can fly. They can't/mustn't fly too high in stormy weather.
canteen / meal / you / enjoy / can / can't / you / good / in / the / food / eat / class / in / the / but / a
You can't eat food in the class, but you can enjoy a good meal in the canteen.
give a compliment
e.g. I can give a compliment to my classmate. For example,...
The teachers say it's NOT OKAY to use your mobile phone in class.
You can't use mobile phone in class.
You mustn't shout in the wildlife park.
Plants need sunlight to grow. You must put them in a dark place.
FALSE
Plants need sunlight to grow. You can't/mustn't put them in a dark place.
- climb / there / a / can / you / tree / over ?
- I / can't / no. friend / my / Alex / can / But.
- Can you climb a tree over there?
- No, I can't. But my friend Alex can.
always come on time