—Mary was heard ________ just now. What happened?—John was telling a joke.
#49144
A
to cry
B
laugh
C
to laugh
D
cry
推荐题目
Don’t forget ________ the lights before you go to bed.
#49236
A
turn off
B
turning off
C
to turn off
D
turns off
—Would you mind _________ the door?—Not at all.
#49002
A
open
B
opened
C
opening
D
opens