Revision on u.4,5

We ......... lots of delicious food.

• cooking

• cook

• cooks

My sister ......in a school .

• works

• work

• working

You....... forget to take a sunglasses.

• must

• mustn't

I ........ do my English homework.

• must

• mustn't

They can ....... the environment.

• enjoys

• enjoy

• enjoying

She ........ eating an ice cream yesterday

• isn't

• weren't

• wasn't