The two boys are fighting _______ each other.
A.on B.at C.for D.with
When will the Greens arrive _______ Nanjing.
A.at B.in C.on D.to
My mother arrives late _______ work because of the heavy rain.
A.to B.in C.for D.at
I have _______ my room every day.
A.clean B.cleaning C.to clean D.cleans
Let’s listen ________ the song together.
A.to B.at C.on D.on
—Does he go to bed at 9:00?—Yes, he _______.
A.is B.goes C.does D.do
