Modals of deduction TEST

He _____ be tired after such a long day. (He worked from 7 a.m. to 8 p.m. without a break.)

• can

• must

• can't

She ____ know the answer; she didn’t study. (She skipped all the classes and didn’t review the material.)

• can’t

• must

• might

They ______ to the party tonight. (They said they were free, but they haven’t confirmed yet.)

• might go

• might have gone

• can go

This ______ a fortune! (The house is huge, and it’s in the most expensive part of town.)

• must be costing

• must cost

• can't cost

It ____ the delivery at the door. (We ordered food 30 minutes ago, and it should arrive soon.)

• could be

• couldn't be

• can't be

You _____ be serious. (It sounds like a joke or something unbelievable.)

• might

• must

• can’t

He _____ right now; his office light is on.

• must work

• must be working

• must have worked

She ______; she’s too honest for that.

• must be lying

• can’t be lying

• might be lying

They might ______ because it’s still early. (It’s only 6 a.m., and they don’t wake up until 7.)

• sleep

• have slept

• be sleeping

He ______ for the bus at the corner now. (He said he would leave at this time to catch the bus.)

(you can choose more than one answer)

• could be waiting

• might be waiting

• must be waiting

• may wait