Question

I think ___is necessary ___ my 20-year-old daughter to have her own mobile.

A．that; of

B．it; of

C．that; for

D．it; for

Answer 1

D

考查固定結(jié)構(gòu)，it is +adj.+for sb to do sth對(duì)某人來(lái)說(shuō)做某事怎么樣，it是形式主語(yǔ)，真正的主語(yǔ)是不定式to have her own mobile。選D。