相关阅读：当动词遇上不定式…… 不带to的不定式前文中，我们已经学习，动词不定式分为“带to 不定式”和“不带to 不定式”。然而，“带to 不定式”在某些情况下，也要省略to这一符号。本篇我们来具体探讨一下to的省略问题。1. 当and或or连接两个并列不定式时，第二个...
新概念英语3、4册连读 巩固+提升1、Both his parents look sad . Maybe they ______what's happened to him .A. knew B. have known C. must know D. will know解析：...
新概念英语3、4册连读 巩固+提升1、Have you met Mr Li ______?A. just B. ago C.before D. a moment ago解析：现在完成时常与already（已经）just（刚刚，正好）、ever（曾经），never（从来，也不;从不）before（以...
新概念英语3、4册连读 巩固+提升1.Tom______the CD player for two weeks. A. has lent B. has borrowed C. has bought D. has had解析：A、B、C均为非延续性动词，在肯定句中不与表“段时间“...
新概念英语3、4册连读 巩固+提升1.It _____ten years since he left the army .A.is B.has C.will D. was解析：现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语连用,通常是用相应的延续性动词来代替。可另用“I...
新概念英语3、4册连读 巩固+提升1.-These farmers have been to the United States . -Really ? When _____ there ? A.will they go B.did they go C.do they go D.have they...
新概念英语3、4册连读 巩固+提升1.Hurry up!The play __________ for ten minutes .A.has begun B.had begunC.has been on D.began解析：现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语...
新概念英语3、4册连读 巩固+提升1.I _______ such an interesting book before. A was never reading B will never read C had never read D hav...
新概念英语3、4册连读 巩固+提升1.All the furniture in the building _______ to the company not to his own. A. is belonged B belongs C. belong D ar...
新概念英语3、4册连读 巩固+提升1.He _______ his leg when he _______ in a football match. A broke, played B was breaking, was playing C broke, was playin...