—Why not get your mother a scarf for her birthday? —_______
It’s snowing all day, so mybrother ______ stay at home. A.must B.have to C must to D.has to
The two boys are fighting _______ each other.
When will the Greens arrive _______ Nanjing.
My mother arrives late _______ work because of the heavy rain.
I have _______ my room every day.