单项选择题

In the busy holiday season, extra buses are provided to ______ the existing service.

A. supplement
B. complement
C. implement
D. experiment
<上一题 目录 下一题>
热门 试题

单项选择题
He was ______ for his years of service to the company with a grand farewell party and several presents.
A. awarded
B. rewarded
C. warded
D. safeguarded
单项选择题
We need to make sure that we （） our resources as fully as possible.

A. use
B. exploit
C. employ
D. explore
相关试题