Our lessons_______ at eight _______the morning.A. starts; at B. start; in C. have; for
Our teacher told us that light _____ much faster than sound.
In our class _____ of the students _____boys.
—_____ you _____ your homework yet? —Yes, I _____ it ten minutes ago.
It’s necessary for you _____ exercise every day.
—Could you tell me _____? —Sorry, I don’t know.