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

-- The cars give off a great deal of waste gas in the streets.
--- Yes. But I’m sure something will be done to ___ air pollution.

Every classroom in this modern school is _______ with a new computer.

These books are ___ children. There are many interesting stories with pictures in them.

A part of the theme park is _________ life in ancient China .

The up-to-date information together with opportunities for hands-on learning makes the
world _______ in a completely new way .

It was amazing that the army _______ its homeland against all enemies.

This problem may _______ more serious ones if left unsolved.

Try and__________ a bit; life isn’t that bad!

Please make sure all the lights are ______ before you go to bed.

If you have decided which bike to buy, you can ______ for it on the Internet and we will send it right to your home.