— I visited the Purple Mountain Observatory last Sunday.
—______ Why didn’t you tell me earlier?
| A．You did? | B．I hope so. |
| C．Have a good time! | D．It’s so kind of you. |
There __________ some children in the painting room. They are studying painting.
| A．is | B． are | C．am | D．was |
–Have you ever been Canada?
--__________.But I hope to go there one day!
| A．Yes, I have | B．Yes, I haven't | C．No, I have | D．No, I haven't |
--Would you mind opening the window? It’s too hot.
--__________.
| A．Sorry. I wouldn’t. | B．No, of course not. |
| C．It doesn’t matter. | D．Yes, please. |
—Listen ! Helen is singing in the next room.
—It __________ be Helen. She is in Tianjin now.
| A．can’t | B．mustn’t | C．may not | D．shouldn’t |
_________ exciting match it is! Wonderful players and wonderful teams!
| A．What | B．What a | C．What an | D．How |