单项选择题

If headaches only occur at night, lack of fresh air is often the cause.

A. deliver
B. fall
C. happen
D. arrive
<上一题 目录 下一题>
热门 试题

单项选择题
In order to survive man needs to consume food and water.
A. work
B. play
C. live
D. walk
单项选择题
We are certain that he will get over his illness.
A. sure
B. happy
C. surprised
D. excited
相关试题