Don’t forget _________ the light before you leave a room
A. to turn off B. to close
C. turning off D. closing
We are supposed to talk with the old _________.
A. polite B. impolite C. impolitely D. politely
Could you please tell me __________ some stamps?
A. where can I buy B. what I can buy
C. where I can buy D. what can I buy
With the help of my mom, my father gave up ______ finally.
A. smoke B. smoked C. smokes D. smoking
Sam used to be short, ______ he?
A. didn’t B. wasn’t C. did D. was
Our classroom should ______ by ourselves every day.
A. clean B. cleaned
C. be cleaned D. be cleaning
