Modal verbs 1

Cars ______ stop when the traffic lights turn red.
This is absolutely not true. You ______ be joking.
I am not sure, but your computer ______ be affected by virus.
Small objects ______ be swallowed by kids.
If you want to drive a car, you ______ drink alcohol.
Modal verbs 1
You got {{userScore}} out of {{maxScore}} correct