单项选择题

If you have not received （）of your order within two business days, please contact  our customer service center.
 

A.confirmation
B.resignation
C.preparation
D.expectation

<上一题 目录 下一题>
热门 试题

单项选择题
All of the machinery must be carefully inspected before production at the plant is allowed to（）

A.inhibit
B.comply
C.motivate
D.proceed
单项选择题
If your computer（）experience any problems within the warranty period, you can take it to an authorized repair center free of charge.

A.will
B.should
C.had
D.would
相关试题