Alibaba has become China’s largest online commercial company, _____ a profit of 1.47 billion yuan in 2010.
Much attention should be paid _______ the wild animals as many of them are dying out.
It is not rare in _______ that people at the age of forty are going to _________university for further education.
There is a popular opinion among teachers _____ reviewing the lesson after class can help students learn better.
Why not __ your new ideas? Otherwise you will never know whether they are possible or not.
He is _____ to staying up and getting up late, which is a bad habbit。