1)You____ all those clothes!We have a washing machine to do that sort of thing A)needn't have washed B)shouldn't have washed C)must not have washed D)can not have washed 2)John's score on the test
6)Bob said he was going to join our club but he didn't. He ____ his mind.A)can't have changedB)wouldn't have changedC)must have changedD)shouldn't have changed7)You____ to town to see the film yesterd
11)I am feeling sick. I____ so much chocolate.A)needn't have eatenB)couldn't have eatenC)mustn't have eatenD)shouldn't have eaten12)I didn't send out my application form last week,but I ____.A)hadB)wo
1） 概念 虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。 2） 在条件句中的应用 条件句可分为两类
1） 用half of, part of, most of, a portion of 等词引起主语时，动词通常与of后面的名词，代词保持一致。 Most of his money is spent on books. Most of the students are takin
1） 在代词what, which, who, none, some, any, more, most, all等词的单复数由其指代的词的单复数决定。 All is right. (一切顺利。) All are present.(所有人都到齐了。)
1） 代词each和由every, some, no, any等构成的复合代词作主语，或主语中含有each, every, 谓语需用单数。 Each of us has a tape-recorder. There is something wrong with my
★ I'll get some at once.I'll get some at once.我马上去弄茶。At once 表示马上”，立即”，相当于right away .例如：After we finished our homework,we went out to play at
The children are no longer young.The children are no longer young.孩子们不再年青了。No longer 表示再也不”，用作状语，也可以写成notany longer .例如：He can do it no lo
一、water不可数water表示水，是物质名词，不可数。如：The water in the lake is so clear that you can see the bottom. 湖水清澈见底。Please remember to water the plants while I