Question

—Henry doesn’t seem like the same person.—_________so much in the war has made him more thought

—Henry doesn’t seem like the same person.—_________so much in the war has made him more thoughtful. A．For him to see B．His seeing C．Having seen D．To be seeing

Answer 1

B

很明显答语在结构上缺少主语。To do 与-ing都可充当主语，但 to do充当主语多表示某一具体的动作，且多表将来。故选B。