He made a mistake，but then he corrected the situation__________it got worse.
| A．until | B．when | C．before | D．as |
On hearing the news, the president ______ his visit to Australia and returned home immediately.
| A．broke off | B．went off | C．kept off | D．took off |
The boss was accused of having a ______ against his female employees.
| A．reputation | B．prejudice | C．symptom | D．profession |
Finally we decided to fly to France for the winter holiday on our first stop, ________ we planned to stay for three days.
| A．when | B．there | C．which | D．where |
When you keep your promises, no matter how much effort it takes, you will be ________.
| A．calculated | B．confirmed | C．rewarded | D．evaluated |
--- Why don't you try to do exercise to lose weight?
--- I have tried everything but it has made little ______.
| A．effect | B．result | C．difference | D．conclusion |