he pretended to have read the book before 有三个问号哦这句子是现在完成时吗?若是,那请问为什么用现在完成时,而不用过去完成时呢?用了过去完成时意义是什么?

pretended to be ving /pretended to have done/pretended to do/pretended ving 哪个对?差别说是什么? When his mother came home,he pretended( )soundA .sleepingB .to sleepC .to have sleptD .to be sleeping When his mother came home, he pretended sound.A. sleeping B. to sleep C. to have slept D. to be sleeping 请问这个怎么填?When passing me he pretended ______ me请问为什么填not to have seen 而不填not having seen?谢谢 when passing me he pretended _me 为什么要填not to have seen 而不是not to see.顺便再讲下什么时候用to do 什么时候用to have done Tom pretended ________ it but in fact,he knew it very well．A.not listen to B.not to hear from C.not to have heard about D.not to be listening to He pretended to be sleeping when I came in．(to be sleeping ） 英语pretend的用法He pretended ______ when I saw himHe pretended ______ when I saw himA to writingB to be writingC to writeD to have written正确答案是B 可是我弄不懂为什么不选C 而是要用被动的进行时态呢 单句改错 I pretended to reading the text when he came in He pretended to be reading a book 中为什么用be reading 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. he pretended to have read the book before 有三个问号哦这句子是现在完成时吗?若是,那请问为什么用现在完成时,而不用过去完成时呢?用了过去完成时意义是什么? when his father came in,he pretended( )a booka,reading b,to reading c,by reading d,to be reading 1 He went hom with his thinigs he wanted (bought）为什么不是to buy 2 When my mother came in ,i pretended (to be reading )为什么不是reading 3 He had to do part-time jobs for(a living )为什么不是iiving?4 They have four children ,three o When I came into the room,he pretended ________ asleep．A.being B.be C.to be D./ 23.He pretended ___ nothing about it.a.knowb.to knowc.knowing选什么,怎么分析的? She pretended to have known it before翻译她假装之前知道还是 她之前假装知道