John was a smart child

6. John was a smart child. He
a. couldn't b. can
7. It is sunny outside. We
a. could b. couldn't
8. It is cold in here.
c. could
read when he was two.
d. can't
go outside and play.
d. can't
c. can
you please shut the window?
c. Couldn't d. Can
a. Can't b. Could
9. The lock was broken (khóa bị hỏng). I
a. can
b. can't
c. could
10. Tom is too small to play soccer. What
a. can't
b. can
c. could
open the door.
d. couldn't
he do?
d. couldn't