Modal verbs

Young people ______ obey their parents.

• must

• may

• will

• might

Leave early so that you ________ miss the bus.

• won

• may

• won't

• might

Jenny's engagement ring is enormous! It ______ have cost a fortune!

• may

• might

• can

• must

I ______ be delighted to show you round the school.

• could

• may

• would

• might

You______________ worry so much. It doesn't do you any good.

• don't have to
• can't
• shouldn't

Terry and Frank said they would come over right after work, so they_____________ be here by 6:00.

• have to
• should
• can

You____________ forget to pay the rent tomorrow. The landlord is very strict about paying on time.

• don't have to
• couldn't
• mustn't

When you are at the beach you _________ listen to the lifeguard.

• shouldn't
• must
• can

Mark __________ride a bike when he was three years old.

• could
• might
• can

 You don't look well. You ______ see a doctor. 

• should
• can't
• must