We have to turn our mobiles off before the plane ...

★ Modals and Past Modals

We have to turn our mobiles off before the plane takes off.

A. The plane hasn’t taken off yet

B. The plane has already taken off

C. The plane is now taking off

D. The plane doesn’t allow mobiles

Preview next quiz:

Joe practices aikido every day, which is why he _____ win the competition last month.

A. can

B. can’t

C. could

D. couldn’t