He pretended ___ when his mother stepped into his room.A.to study B.studying C.to be studying请问为什么选c?

23.He pretended ___ nothing about it.a.knowb.to knowc.knowing选什么,怎么分析的? 他假装病了以便能待在家里 He pretended to be ill ___ ___ he could stay at home He pretended ___ when his mother stepped into his room.A.to study B.studying C.to be studying请问为什么选c? 英语非谓语动词 不定式 请将例句序号填入对应的里面.并说一下原因^^ 观察下面各句,阅读动词不定式在句子中的作用,并把相应的句子的序号填入到表格中.1）He pretended to be reading attentively whe 同义句改写：He pretended that he didn't know the answerHe pretended ____ ____ know the answer 填合适的介词1.The firemen put out the fire ___ water and helped the people in the flat out2.She quicklu ran back ___ her flat 3.He rushed ___ the burning building to save the old man 4.Look!The house is ___ fire.His mother ___ the stove ___ whe 是不是病句?he pretended that he didn't know her when she passed him He pretended that he did not know the man.改同义句 Tom pretended to cheerful,___ nothing about the argument.用says,said,to say还是saying？ 单句改错 I pretended to reading the text when he came in He pretended to be sleeping when I came in．(to be sleeping ） The naught boy pretended ________ (read) when he saw his mother coming. He pretended to be reading a book 中为什么用be reading Tom pretended _______(finish) his homework.In fact,he didn't. When we talked about the computer,he pretended to be an expert.翻译 When I said hello to him,he pretended not (recognize) me at first. I couldn’t understand why he pretended _________ in the bookstore bluesky whe