---Do you know_______ the books on the shelves? --- Sorry, I can’t count them, because there are _______books. A. a number of; the number of B. a number of; a number C. the number of; a number of
The policemen_____ the thief when the accident happened.
The wind was blowing(刮)____ and there was no____ in the sky.
Mr. Smith with his sons ______ supper at 7o’clock yesterday evening.
We won’t start the meeting _________ our teacher arrives
I think the new comer is easy to__.