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
牛津苏教二下《Unit 7 Can I help you》ppt课件
牛津苏教二下《Unit 1 Do you like winter》ppt课件之四
牛津苏教二上《Unit 3 Look at the moon》flash课文动画
2013牛津苏教二上《Unit 9 Merry Christmas!》ppt课件1
苏教牛津版英语一下《Unit 3》PPT课件
牛津苏教二上《Unit 3 Look at the moon》ppt课件
苏教牛津版英语一下《Unit 8》PPT课件2
2013牛津苏教二上《Unit 9 Merry Christmas!》ppt课件2
苏教牛津版英语一下 1B 教材分析 PPT课件
苏教牛津版英语一下《Unit 4 My nice ruler》PPT课件
2013牛津苏教二上《Unit 9 Merry Christmas!》ppt课件3
苏教牛津版英语一下《1BUnit 7》PPT课件
牛津苏教二下《Unit 3 What can you see》ppt课件
牛津苏教二上《Unit 7 Here you are》flash课文动画
苏教牛津版英语一下《Unit 10》PPT课件2
牛津苏教二上《Unit 8 Dinner time》flash课文动画
2013牛津苏教二上《Unit 8 Dinner time》ppt课件3
牛津苏教二上《Unit 9 Merry Christmas》flash课文动画
牛津苏教二上《Unit 1 My family》flash课文动画
牛津苏教二上《Unit 5 At the market》flash课文动画