Bob didn’t go to bed _______ he finished doing his homework.
A. because B. until C. however
Every year, _______ people come to visit our school.
A. hundreds
B. hundreds of
C. hundred
They plan to have a party _______ Saturday afternoon.
A. on B. in C. at
Peel three bananas then __________.
A. cut them off
B. cut them down
C. cut them up
Tony is really funny, he often makes me _______.
A. laugh B. laughs C. laughed
There will be less_______ and the environment will be better.
A. trees B. pollution C. factories
