Modal Review

Mayans built large cities. They _____ have had an advanced civilization.

• must

• must not

Carla ___ have received our postcard yet, since we mailed it yesterday.

• Must

• Couldn't

Is this correct? You must have took a thousand photos today.

• Yes

• No

I got a C on my test. I should ___ studied more

• have

• had

Select all verbs of possibility

• can

• must

• able to

• might

• could

The written rules say that to join the site you ___ be over 13.

• might not

• shouldn't

• must

• may not

Dan's work was closed yesterday. He ___ have been working.

• must

• may

• couldn't

• ought not to

Select all modals of advice

• Must

• had better

• might

• ought to

• should

You ___ clean your room or else you won't get dinner.

• should

• had better

• could

• may

I ____ to have asked for help.

• ought

• should