He usually goes to work on time .A. except for raining daysB. besides it rainsC. but that

问题补充：

He usually goes to work on time .

A. except for raining days

B. besides it rains

C. but that it rains

D. except on rainy days

答案：

A. except for raining days

B. besides it rains

C. but that it rains

(答案→)D. except on rainy days

解析：表示排除在外用except；而表示在不影响整体评价的前提下，有一些不足或缺点except for用。