Question

【題目】They realized that the problem Ted put forward was difficult _______.

A.to solveB.solvedC.to be solvedD.solving

Answer 1

【答案】A

【解析】

考查非謂語動(dòng)詞。句意：他們意識(shí)到泰德提出的問題很難解決。結(jié)合短語be difficult to do sth.“難以；很難……”后跟不定式，且在此結(jié)構(gòu)中，若主語與其后的不定式為動(dòng)賓關(guān)系，那么該不定式習(xí)慣上要用主動(dòng)形式表示被動(dòng)意義。故用to solve形式。故選A。