wind or rain we always go to school on time.A. WhetherB. IfC. No matterD. Regardless of

问题补充：

wind or rain, we always go to school on time.

A. Whether

B. If

C. No matter

D. Regardless of

答案：

A. Whether

B. If

C. No matter

(答案→)D. Regardless of

解析：考查介词短语。Regardless of不理，不顾。句意：不管风雨，我们总是准时去上学。选D。