单项选择题

Most good writers use every means ______ to make the reader's way smooth and easy.

A. at their disposal
B. at their request
C. at their will
D. at their convenience
<上一题 目录 下一题>
热门 试题

单项选择题
The 1986 Challenger space-shuttle ______ was caused by unusually low temperatures immediately before the launch.
A. expedition
B. controversy
C. dismay
D. disaster
单项选择题
It is necessary that an efficient worker ______ his work on time.
A. accomplishes
B. can accomplish
C. accomplish
D. has accomplished
相关试题