—Cheap food means that everyone can afford to eat well．
—___．But what about the long-term effect on the environment?
| A．I see your point | B．Not really |
| C．That' s all right | D．I hope not |
________ hard you try，it is difficult to lose weight without cutting down the amount you eat.(2012·湖南)
| A．However | B．Whatever | C．Whichever | D．Whenever |
—Since you like the car so much，why not buy it?
—________，I can't afford it.
| A．As I like it much | B．Much as I like it |
| C．I like it as much | D．As much I like it |
The girl had hardly rung the bell ________ the door was opened suddenly，and her friend rushed out to greet her.
| A．before | B．until | C．as | D．since |
Mary made coffee ________ her guests were finishing their meal.
| A．so that | B．although | C．while | D．as if |
As is reported，it is 100 years ________ Qinghua University was founded.
| A．when | B．before | C．after | D．since |