Modal verbs: can - should - must - need

You ---------- listen to loud music.

• must

• mustn't

You_____________ plant vegetables.

• Should

• Shouldn't

You must not _______ on the grass.

• walking

• walks

• walk

• walked

You ______pick the flowers.

• must

• mustn't

I need to _______

• CLEANS

• CLEAN

She _______ to iron.

• NEED

• NEEDING

• NEEDS

We need to ____ lunch.

• eats

• eat

• eaten

• eating

I _______ make the bed.

• need to

• needs to

 I ___________ study for my exam tomorrow. It's really important

• mustn't
• must 
• needn't 
• must to 

You _____________ wear a swimming cap but some people do

• mustn't 
• must
• needn't 
• must to