---- Do you know Tom, father is an engineer?
---- Yes, quite well. He be the first to offer me help when I met with problems.
A. the; would
B. which; used to
C. that; used to
D. whose; used to
网友回答
A. the; would
B. which; used to
C. that; used to
(答案→)D. whose; used to
解析：考察定语从句和情态动词。本题第一空是定语从句，先行词是Tom,后面定语中名词father前面确实定语，故使用whose指代先行词，在句中做定语。第二空中的used to do sth过去常常做某事，表示现在已经不做了。Would表示过去常常做某事，现在可能还在做。句意：—你认识Tom吗？他的父亲是一个工程师。—是的，很熟悉他。在我遇见麻烦的时候他过去常常是第一个来帮助我的人。故D正确。