How ____ you, Bill—–I ____ fine, thanks!

Teachers should create an environment children are taught how to solve problems of learning by themselves.

I did not give offence to you ___________.—Forget it. Let’s make up.

raft Shenzhou Ⅶ took off onNovember 1st, 2011, at Jiuquan Satellite Launch Center in NorthwestChina.

the earth, Mars is too cold and Venus is fartoo hot _______ there to be any life