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4.I was ________ nervous when I stood on the stage that I forgot everything. 答案 so [so...that...意思是“如此……以至于……”。] ②由倒装句式判断，是填构成倒装条件的only，so，neither，nor，never，hardly，seldom，not until，had等，还是填do，does，did等。 【典例】 Not ________ I caught sight of my teacher in the crowd did I calm down. 解析 句意：直到我在人群中看见我的老师我才平静下来。not until放在句首，句子要部分倒装。 答案 until ③由it作形式主语或形式宾语的句式判断，空格处是否填it。 【典例】 She remembered how difficult ________ was to choose a suitable Christmas present for her father. 解析 句型：it is difficult(for sb)to do(某人)难以做……。how引导的宾语从句缺少主语，用it作形式主语，真正的主语是动词不定式短语to choose...。 答案 it 【方法指导】 如果句中缺少谓语动词，并确定所给动词要填写为谓语动词，就要考虑时态和语态。 【典例】 He ________ (pretend)that a tiger toy was real and giving it a voice. 解析 句意：他假装那个老虎玩具是真的……此处表达“我”上车时他正在做的事，故用过去进行时态。 答案 was pretending 给出动词题 1.He walked in as if he ________ (buy)the school.And the word quickly got around that he was from New York City. | 
