The cleaners must prevent the street ______.
#48619
A
getting dirty
B
from dirty
C
from get dirty
D
from getting dirty
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--- Where is my watch, dad?--- I don't know. You can ask your mother _____ help.
#47420
A
for
B
of
C
at
D
in
Can you buy me a birthday cake _____ the afternoon? Sorry, I busy. I can do it _____ Sunday afternoon.
#46328
A
on, in
B
in, on
C
in, at
D
on, at