21.This is a simple idea, but___________ which is hard to put ________ into practice.
A .one; x B. the one; it C. that; it D. one ; it
22. The project along with the experiment we had once devoted so much time _________ perfectly.
A .to work out B. to working out C. to worked out D. has worked out
23. Most US citizens retire around the age of 62, __________ is the national minimum retirement age.
A . when B which C. it D. that
24. I forget where I read the article, or I ________ it to you now.
A . will show B. would show C. am going to show D. am showing
广东版(开心)四下《Unit 9 Are these blue socks yours》word教案
牛津上海版一上《Unit 2 My classmates》ppt课件1
牛津沪教一上《Unit 2 Numbers》flash课件
牛津沪教一上《Unit 7 My family》ppt课件
牛津沪教一上《Unit 8 Playtime》flash课件之一
牛津上海版一上《Unit 3 My face》ppt课件1
牛津上海版一上《Unit 1 On the farm》ppt课件
广东版(开心)四下《Unit 10 What do you want to do》word教案
广东版(开心)五下《Unit 1 Where were you last month》word教学设计
牛津沪教一上《Unit 8 Playtime》ppt课件
广东版(开心)四下《Unit 7 I like eating》word教案
广东版(开心)三下《Unit 6 What are these》word教案
牛津沪教一上《Unit 2 Numbers》flash课件之一
牛津沪教一上《Unit 8 Playtime》flash课件
牛津沪教一上《Unit 2 Numbers》flash课件之二
牛津沪教一上《Unit 3 My abilities》flash课件
牛津沪教一上《Unit 8 Playtime》flash课件之四
广东版(开心)四下《Unit 3 I’m washing the car》word教案
牛津沪教一上《Unit 2 Numbers》flash课件之三
牛津沪教一上《Unit 7 My family》flash课件之一
牛津上海版一上《Unit 3 My friends》ppt课件
牛津沪教一上《Unit 8 Playtime》flash课件之二
广东版(开心)三下《Unit 1 Hello, Gogo!》word教案1
牛津沪教一上《Unit 2 Numbers》flash课件之四
牛津沪教一上《Unit 9 Revision》flash课件
牛津上海版一上《Unit 2 My classmates》ppt课件3
牛津上海版一上《Unit 3 My face》ppt课件
牛津沪教一上《Unit 9 Revision》flash课件之三
牛津沪教一上《Unit 7 My family》flash课件之三
牛津上海版一上《Unit 3 My friends》ppt课件1