tom slipped into the house when no one was noticing这句话为什么同过去进行时?是因为when的关系吗?那什么时候用进行时?什么时候不用?为什么这句话不用呢?he had walked three or four miles when he saw a cart,halg-ful

英语19.Tom ________ into the house when no one _______.19.Tom ________ into the house when no one _______.a.slipped;was looking b.had slipped;looked c.slipped;had looked d.was slipping;looked为什么 ..语法Tom _____ into the house when no one _____.A.sliped ,noticed B.had slipped ,noticed C.slipped,had noticed D.was slipping ,was noticing . Tom ____ into the house when no one ____Aslipped:was looking Bhad slipped:looked Cwas slipping :looked（附加理由） 8. Tom ________ into the house when no one _________ .A. slipped; had looked B. has slipped; lookedC. slipped; had looked D. was slipping; looked或者是不是有其他更佳答案？ ..求详解为什么选Tom _____ into the house when no one _____.A.sliped ,noticed B.had slipped ,noticed C.slipped,had noticed D.was slipping ,was noticing . Tom ___________into the house when no one _______1.slipped ,was looking2.was slipping ,looked 翻译 As she slipped on the shoes,her rags turned into the beautiful green dress she had worn. 1.I rarely drink alcohol—just a(n) _______ glass of wine.A.regular B.usual C.occasional D.steady2.The plan didn’t really have a _______ of succeeding.A.luck B.future C.fate D.chance3.Tom _______ into the house when no one _______ .A.slipped…was 非延续性动词能否用ing形式As she was reading the newspaper,Granny fell asleep.和Tom slipped into the house when no one was looking .这两句话好象是属于一类题.为什么reading,looking用进行时态,而其他两个词不用.是 过去进行时练习题答案一、 单项选择1.My brother ___ while he ___ his bicycle and hurt himself.A.fell,was riding B.fell,were ridingC.had fallen,rode D.had fallen,was riding 2.Tom ___ into the house when no one ___.A.slipped,was looking B 过去进行时专项练习三 选择填空1.My brother ___ while he ___ his bicycle and hurt himself.A.fell,was riding B.fell,were riding C.had fallen,rode D.had fallen,was riding2.Tom ___ into the house when no one ___.A.slipped,was looking B.had s Tom slipped into the house when no one was noticing这句话为什么同过去进行时?是因为when的关系吗?那什么时候用进行时?什么时候不用?为什么这句话不用呢?he had walked three or four miles when he saw a cart,halg-ful tom slipped into the house when no one was noticing这句话为什么同过去进行时?是因为when的关系吗?那什么时候用进行时?什么时候不用?为什么这句话不用呢?he had walked three or four miles when he saw a cart,halg-ful they ( ) a football game from 7 to 9 last night. A.were watching B.watched 2.Tom ( ) into the house when no one ( ) A.slipped; was looking B.was slipping; looked特别是第二题,不是一般都是when 后面的从句接不持续动词 ( )some danger ( ) near,he slipped back into the cave.A.sensed;drawn B.sensing;drawing C.sensing;drawn D.sensed;drawing being done与 done状语he slipped into the room,without himself being seen,为什么不用seen,而要用being seen , They saw Tom coming into the shop 的被动语态 They saw Tom coming into the shop.改为被动语态