1.It is essential that he___in extracurricular activities. rticipate rticipates C.will participate all participate2.Research findings show we spend about two hours dreaming every night,no matter what we__during the day. ould have done B.would have done y have done st have done3.It was impossible to avoid___by the stormy weather. be much affected ing much affectedC.having much affected have been much affected4.Although he knew little about the large amounts of work done in the field,he succeeded___other more well-informed experimenters failed.A.which at C.what D.where5.The king commanded that enough money___to fund the project. collected st be collected collected n be collected6.Frankly speaking,I'd rather you___anything about it for the time being.A.didn't do B.haven't done n't do D.have done請告訴我為什么要選那項好嗎？

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1。It is essential that he___in extracurricular activities。 rticipate rticipates C。will participate all participate\\\\ A participateIt is essential that 是虛擬語氣句式，that 的從句中 用 should + 動詞原形，而should 可省略。2。Research findings show we spend about two hours dreaming every night,no matter what we__during the day。 ould have done B。would have done y have done st have done\\\\\\\ may have done研究發現顯示，每天夜里我們花大約2個小時做夢，不論我們在白天期間可能做了什么。只有選 C 句子的意思才是通順的。3。It was impossible to avoid___by the stormy weather。 be much affected ing much affectedC。having much affected have been much affected\\\\\B being much affectedavoid 后 接動名詞，不能接不定式。所以 A D 錯誤。而C是主動句式，不是被動句式，不符合句子的意思。4。Although he knew little about the large amounts of work done in the field,he succeeded___other more well-informed experimenters failed。A。which at C。what D。where\\\\\\\ D where雖然他對這個領域里的大量工作 知之甚少，但是他在其他更家 內行 的實驗者失敗的問題上 取得了成功。succeed后要接狀語從句，表示 在什么地方什么問題上 成功了。只有 where 才能構成狀語從句。 5。The king commanded that enough money___to fund the project。 collected st be collected collected n be collected\\\ A be collected command 后得that 從句中要使用虛擬語氣 should+動詞原形。should 可省略。6。Frankly speaking,I'd rather you___anything about it for the time being。A。didn't do B。haven't done n't do D。have done\\\\\\\ A didn't dowould rather + that 從句，要使用虛擬語氣，that 從句中的動詞 使用 過去式。。