—Must we clean the classroom at once?—No, you . You can clean it after school.A. needn’t B. mustn’t C. must
I hope ________my birthday party next Saturday.
The children will climb the hill if it ________tomorrow.
He always looks ________. Now he is looking ________at his new drawing.
We were all ________at the ________news.
________the foreign friends here is over 400. And ________them come from the USA.A.The number of; the number ofB. A number of ; a numberC. The number of ; a number ofD. A number of ; the number of