问题补充:
the smoke come out of the building, my first thought was to call the fire department as soon as possible.
A. Having seen
B. When seeing
C. When I saw
D. Seeing
答案:
A. Having seen
B. When seeing
(答案→)C. When I saw
D. Seeing
解析:考查句子结构。当分词做状语的时候,分词的逻辑主语必须的句子的主语,ABD三项的动词的逻辑主语都是人,而后面句子的主语是my first thought。两者不一致,故C正确。句意:当我看见烟从那个房子里出来的时候,我第一个想法就是尽快地打电话给消防部门。