Modal Verbs

You ... write and thank Aunt Louise for your present.

You ... wear a coat. It is very warm outside.

It's late. Mark ... have forgotten about the meeting

He ... be at work. His car isn't outside his house.

... we have lunch in the garden today?

Sam ... carry the box. It was too heavy.

We ... go shopping because we had plenty of food.

She ... be on holiday. I saw her this morning.

... you help me with my homework?

... I borrow your pen? Mine doesn't work.

You ... go to the post office. I'll go later.

You ... to be at work by nine o'clock.