My mother is busy_____ the room.
#49979
A
clean
B
to clean
C
cleaning
D
cleans
推荐题目
My parents told me try ______on Christmas Eve because Santa Clause may come and send me some gifts.
#50171
A
not to sleep
B
don't sleep
C
not sleep
D
to not sleep
—Maria likes singing. Do you often hear her _______ after class?—Yes, I do.
#49776
A
sing
B
to sing
C
sings
D
sang
