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

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

          【答案】A

          【解析】

          考查非謂語(yǔ)動(dòng)詞。句意:他們意識(shí)到泰德提出的問(wèn)題很難解決。結(jié)合短語(yǔ)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(yǔ)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。

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