Environment(环境) is very________，but you don’t understand the_______ of it，you always drop litter everywhere．
| A．important，important | B．important，importance |
| C．importance，importance | D．importance，important |
Justin Bieber is ________ Canadian singer and he has lots of fans.
| A．a | B．an | C．the | D．不填 |
— Maths is as interesting as English, I think.
—. English is more interesting than maths.
| A．I think so | B．I don’t think so | C．I hope so | D．I don’t hope so |
— Will you please take a message for the headteacher?
| A． It doesn’t matter | B．Sure. I’ll be glad to |
| C． Yes, I’ll take | D．I can help you |
— Thank you for your help.
| A． That’s all right | B． No, thanks | C． That’s right | D． Of course |
—are the apples?
— Four yuan a kilo.
| A． How many | B． How much | C． How heavy | D． How expensive |