语法题目请解释分析谢谢为什么不选Bup to now the earthquake ( )no serious damage.A.would do B.had done C.did D.has done

语法题目请解释分析谢谢为什么不选Bup to now the earthquake ( )no serious damage.A.would do B.had done C.did D.has done 语法题目请解释分析谢谢为什么不选CHe ( )many experiences he ever ( )in his childhood.A.gradually forget ...had B.is gradually forgetting...had C.was gradually forgetting...had hadD.have gradully forgotten ...had 语法题目请解释分析谢谢为什么不选Cby the time the course ends ( )a lot about culture.A.we'll learnt B.we r leaving C.we have learnt D.we'll have learnt 语法题目请解释分析谢谢为什么不选Ayour mother ( ) for u everywhere.where have u been?A.had looked B.has been looking C.looked D.was looking 语法题目请解释分析谢谢为什么不选BMr.Wilson asked me if these islands ( ) Italy.A.have been belonged to B.r belong to C.belong to D.belonged to 语法题目请解释分析谢谢为什么不选Awhat ( ) do with the car?A.r u about to B.will u be going to C.r u going to D.have u been to 语法题目请分析为什么不选B谢谢Do u smell smoke?Yes.Something ( ).A.should have burnedB.must have burnedC.should have been burningD.must be burning 语法题目请分析为什么不选A谢谢“Have u seen David recently?No.I guess he ( )away on vacation.A.must has beenB.must beC.might have been D.may has been 高中化学题目,请写分析原因,谢谢! PUOTO16答案是D，但不知道为什么？ 语法题目请解释分析A,D里选哪个谢谢By he time i returned ,u ( )this book.A.would have finished B.would finishC.will be finished D.should have finished 语法题目请分析这种有逗号的句子什么属性谢谢Beside( ),he had to pay back all the money he had receiced from bribes.A.jailingB.being jailedC.to be jailed D.jailed为什么不能选C 英语一道题目Some middle school students have always been studying hard because they (are dreaming about )going to universities.为什么是are dreaming about?不可以是dream about?请详细解释,谢谢!涉及到什么语法? 材料力学切应力题目麻烦解释下abc分别为什么不可以,谢谢!尤其是c I shall be able to pick it out.请解释此句语法结构,为什么用shall be able to 呢,实在想不通,请解释,谢谢 现代汉语题目 请用层次分析法分析“语法我以前没学过”这句话 为什么水溶液不带电Rt.请从微观角度进行分析~谢谢 *14.Color of skin and sex are hardly relevant _____ whether somebody is suitable for a job.A.for B.on C.to D.with请翻译,分析语法结构,解释选择与不选的原因. If I ----plan to do anything I wanted to , I'd like to go to Tibet through as much of it as possiblA would,B could,C hav to D,ought to这题答案是B,为什么不选A?从语法角度讲A也行得通啊请给详细而准确分析,谢谢请问如果