His funny hat made the students _____ in class.
There is _____ boat in ________river.A. a; the B. the; a C. a; a
Some of my friends are interested in science,but none of them can tell_____.
—I’m worried about the coming test. —You should work hard for it,_____you’ll have to take it again.
—Have you got everything_____you need to take for the trip? —Yes.I have got everying read.
Rober will start a driverless taxi service,so don’t feel surprised when you see a taxi coming_____a driver.