An old friend of mine called me up this morning but he refused to tell me his present .A.

问题补充：

An old friend of mine called me up this morning,but he refused to tell me his present .

A. home

B. place

C. where

D. whereabouts

答案：

A. home

B. place

C. where

(答案→)D. whereabouts

解析：whereabouts下落，行踪，所在之处。