— You study ______ hard _______ you’re sure to pass the exam.
— Thank you for saying so.
A. enough… to B. as…as C. so…that
---We can use QQ to talk with each other on the Internet.
---Really? But can you tell me _______it.
| A．how I can use | B．how can I use | C．why can I use | D．when I can use |
Now the air in Yancheng is than it used to be. Something must be done to stop it.
| A．very good | B．much better | C．rather bad | D．even worse |
Miss Liu is English teacher. She teaches English very well.
| A．us, we | B．our, we | C．we, us | D．our, us |
bad weather ! I can do something but to stay in bed for the whole day.
| A．What a | B．How a | C．What | D．How |
---How long did it _____ you to work out the difficult maths problems?
---I ______ about half an hour on it .
| A．take ; took | B．spend ; took | C．spend ; cost | D．take ; spent |