I have to go now to pick up my daughter.--If you go at least wait till the rain stops

问题补充：

--I have to go now to pick up my daughter.

--If you go, at least wait till the rain stops.

A. can

B. may

C. should

D. must

答案：

A. can

B. may

C. should

(答案→)D. must

解析：考查情态动词。题意：就算必须去（接女儿），至少应该等到雨停了。must表示“不可推卸、不可推让”。A,B,C三项都无此含义。选择D项。