It’s important _________ us _________ English well.
| A．of, learning | B．for, to learn |
| C．of, to learn | D．for, learning |
-- Would you please __________your radio a little? I can hardly go to sleep.
-- Oh, sorry.
| A．turn off | B．turn on | C．turn down | D．turn up |
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 |