---We’d better invite Jim and Jack to the party tonight.---Yes, _____? I’ll give them a call right now.
—Mum, _________ I play football? —Yes, you can. But you should finish your homework first.
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.