---What can I do for you?If you see Mr. Smith give him my regards.A. willB. would

问题补充：

---What can I do for you?

----- If you see Mr. Smith, give him my regards.

A. will

B. would

C. shall

D. should

答案：

A. will

B. would

C. shall

(答案→)D. should

解析：should用于if引导的条件状语从句时，表示某件事情的可能性很小，意为“万一”。

【标签】情态动词