I have a tight budget for the trip，so I'm not going to fly ________ the airlines lower ticket prices.(2012·上海，32)
| A．once | B．if | C．after | D．unless |
相关试题
______ is known to all is that good friends ______ happiness and value to life．
| A．What；add to | B．It；add | C．What；add | D．It；add to |
-----Why don’t you do some exercise? Sitting before the computer is bad for your health.
-----________, but I have to finish my work on time.
| A．Sorry, I won’t listen to you | B．I don’t think so |
| C．Thank you for your kindness | D．It’s none of your business |
Firefighters warned that the change in the weather might ________ new fires.
| A．bring up | B．lead to | C．result from | D．break out |
_______happens ,we will stand by your side .
| A．Whatever | B．What | C．That | D．Whenever |
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