-Your daughter dances so well. How long has she learned it?
一_______ten years.
| A．For | B．Since | C．In | D．By |
Our math teacher is very kind ______ he looks very serious.
| A．because | B．though | C．if | D．when |
This isn’t my sister’s skirt. ______ is blue.
| A．Mine | B．His | C．Yours | D．Hers |
Now the air in our city is ______ than it used to be. Something must be done to stop it.
| A．good | B．bad | C．worse | D．better |
This type of MP5 is so expensive that I can’t ______ it.
| A．afford | B．spend | C．cost | D．pay |
You can get much ______ about the famous singer on the Internet.
| A．ticket | B．map | C．information | D．picture |