---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 |
Studying in groups is necessary________you want to do well in school．
| A．if |
| B．until |
| C．unless |
| D．though |
—Would you like some________？
—Yes，please．I’m thirsty．
| A．water |
| B．bread |
| C．pens |
| D．clothes |
The new Apple’s product（产品）“iPhone 4S”is________among the young people．
| A．meaningful |
| B．traditional |
| C．popular |
| D．special |
—I am thirsty．May I have something to drink？
—OK．Here’s some________．
A．rice
B．bread
C．water
Give me________mutton and________orange，please．
| A．some，an |
| B．some，a |
| C．a，some |
| D．an，some |