Modal verb

Look ! The lights are off so the library …….………………….. be closed.

My dictionary isn’t in my schoolbag. I …………………….. have left it at home

It’s prohibited to go into that building. You ……………………. go in.

I’ve lost my keys. I ……….............. have dropped them when I went shopping.

Last Christmas party was fabulous, you ………………………………. have come with me.

The old woman ……………….. fall on the street and break a leg. She ………… carry a stick.

You ………………………………. have shouted at Thomas yesterday. He is very sorry.

That house was really important in her life so she …………………………. sell it.

If you are interested in human life, you …………………….. study biology.

The girl …………………… go to the studio for an audition.