Modal verbs (basic)

I ____ swim very well when I was a kid.

You ____ park here. It's prohibited.

might

I ____ go out tonight, but I'm not sure.

can

had to

mustn't

should

My parents _____ cook very well. Their food is delicious!

Yesterday I was tired because I ____ wake up really early.

You ____ see a doctor. I think you have an infection.

could