Question

11. Your cousin ... surf very well. And you
a.can
b.must
c.should
12. Remember that you ... take a selfie in class.
a.can't
b.mustn't
c. shouldn't
13. Sheila.. play the bassoon at all!
a.can't
b.mustn't
C.shouldn't
18. Drivers... stop because the kids are crossing.
a.can
b.must
C. should
19. Ben, you ... drive if you are drunk. It's illegal!
a.can't
b.mustn't
C.shouldn't
20. My neighbour ... be on a diet. She's too fat!
a. can
b. must
C. should​

Answer 1

can

shouldn't

can't

must

shouldn't

should