Modal verbs (can, could, must, should) GA

I ______ eat my dinner last night. My stomach hurt.

• couldn't

• can

• should

• can't

Rock climbing _____ be dangerous.

• can

• mustn't

• should

_____ you open the window, please? (polite request)

• Can

• Could

• Must

• Should

You _____ read the washing machine instructions carefully. If you don't, you will ruin your clothes.

• shouldn't

• should

• can't

• can

At school, you ______ eat in class.

• could

• mustn't

• should

• couldn't

You ____ smoke here.

• mustn't

• couldn't

• can

• could

My brother ______ drive a car. He doesn't have his license.

• can

• can't

• couldn't

• could

____ swim when you were a child?

• can't you

• could you to

• can you

• could you

You _____ fail your exam! You've been studying for weeks.

• can't

• must

• should

She ____ train harder if she wants to break the record.

• can

• should

• shouldn't

• can't