Why does your teacher _________ play basketball?—–Because he does not have much free time to play it.
There are about ____________ students in our school.
Mr.Green____gotobed____hefinishedhisworklastnight. [ ]
My boss insisted that I _______ the work before ten o’clock tonight.
Lucy,do you prepare for your trip?—No, I don’t. I will ____ the best way to have our trip.