欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

In order to ________ with the advanced countries, we must keep learning. 

 You’d better ______ some money for special use. 

 Would you slow down a bit, please? I can’t _______ you. 

If you had _____ your test paper carefully before handing it in, you would have made fewer mistakes. 

Happily for John’s mother, he is working harder to _______ his lost time. 

--- It’s a good idea. But who’s going to ______the plan? 
　　 ---I think Tom and Greg will. 

“It” is often used to 　　　　　　　a baby.

It is important 　　　　　　　their offer.

 To gain a bigger _______ internationally, many companies are striving to make their products more competitive.

It is said that bad living habits as well as dirty surroundings, stuffy rooms and some other factors ________ the wide spread of H1N1.