The number of students in our school _________ 4000 and a number of them _______ good at playing Ping-Pong.A. is, is B are, areC. is, are D. are, is
We’re not sure if it ______ tomorrow. If it _____ tomorrow, we won’t go hiking
----We can use QQ to chat with each other on the Internet ----Really? Will you please show me _________ it?
I won’t be able to understand what you say ______you speak too quickly.
—Thank you for your coffee and tasty snacks. I’m afraid I have to go now. —OK. ______.
— I’m afraid I’ve got a bad cold. —_______.