问题补充:
It is colder than yesterday; put on more clothes or you will catch a cold.
A. frequently
B. fortunately
C. slightly
D. generally
答案:
A. frequently
B. fortunately
(答案→)C. slightly
D. generally
解析:考查副词:A. frequently频繁地B. fortunately幸运地C. slightly轻微地 D. generally一般地,句意:今天比昨天稍微冷一些,多穿些衣服,否则你会冷的。选C。