题目内容
5.He found ____ very difficult _____ the problem.( )| A. | that; to work out | B. | this; working out | ||
| C. | himself; work out | D. | it; to work out |
分析 他发现解决这个问题很难.
解答 答案D 根据found--verydifficult _____ the problem的句子结构,可知需用it在此处作形式宾语,指代由动词不定式引导的真正宾语,所以应用to work out.故答案选D.
点评 本题考查:1.it在句子中作形式宾语.
2.不定式to do在句子中作宾语.
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