—Did you have any trouble in getting here ?— No . I would have telephoned you .A. HoweverB

问题补充：

—Did you have any trouble in getting here ?

— No . I would have telephoned you .

A. However

B. Otherwise

C. Therefore

D. Anyway

答案：

A. However

(答案→)B. Otherwise

C. Therefore

D. Anyway

解析：考察副词，however+adj，otherwise,否则 therefore因此，anyway 无论如何

句意为，----你到这来没有问题吧？-----没有，否则我就打电话给你了。