.
_____ you have a complaint to make, do something about it right away. The longer you wait, the harder it will be to get your complaint resolved.
| A．If | B．Unless | C．Though | D．Since |
相关试题
In April, 2009,President Hu inspected the warships in 
Qingdao, ______ the 60th anniversary of the founding of the PLA Navy.
| A．marking | B．marked | C．having marked | D．being marked |
Hard as a teacher may try, he can’t ______to make all his stu
dents make a difference in study, letting alone in life.
| A．make sure | B．be sure | C．guarantee | D．insure |
Hearin
g the news that he had been ______as general manager of the big company, he ______ with excitement and joy, forgetting that he was showing some visitors around.
| A．named; broke out | B．appointed; erupted | C．made; was filled | D．chosen; was full |
Prices keep _______and people have to keep a close eye on their wallet.
| A．going up | B．rising up | C．lifting up | D．raising up |
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