Modal Verbs: Obligation and Possibility

You ... take a test if you want to ride a bicyle in most countries.

• can't

• don't have to

• can

• have to

You ... leave your coat here if you want to.

• can't

• don't have to

• can

• have to

When you travel to another country you ... take your passport.

• can't

• don't have to

• can

• have to

In Singapore you ... chew gum because it's against the law.

• can't

• have to

• can

• don't have to

In the U.K. you always ... wear your seat belt when you drive.

• can't

• have to

• can

• don't have to

In the U.K. you ... smoke in restaurants. It's forbidden.

• have to

• don't have to

• can't

• can

In the U.S. you ... drink until you're 21.

• don't have to

• can't

• have to

• can

You ... do it if you don't want it.

• don't have to

• have to

• can

• can't

when I got to the airport, I ... check in inmediately because I was too early.

• don't have to

• could

• couldn't

• have to

He ... understand the announcement because he didn't speak French.

• have to

• could

• don't have to

• couldn't