13.过去将来完成时:(would have done) 表示到过去将来某一时间已经完成的动作,并且对过去将来那一时间点产生影响。 例:I believed by the end of that year an advanced version of tha...
成人高考学位英语备考练习:非谓语动词 一、不定式 (一)基本结构 to do to be doing to have done to be done to have been done 学位英语真题汇编 1、Judging from his manners at the party, he does
A. have you been doing B. have you done C. were you doing D. did you do 2) ––– Hi, Tracy, you look tired. ––– I am tired. I ___ the living room all day. A. painted B. had painted C. have been painting D. have painted 3) I...
C. may have been taken D. should have been taken 7、Since this road is wet and slippery this morning, it ___ last night. A. must rain B. was raining C. must have rained D. may rain 8、She ___ be ill because I saw her playing tennis just now. A. can...
更多内容请点击：技巧总结 | 英语语法16种英语时态,经典收藏版,考试必备!