there is no such thingas a free lunch in the world, one millionpeople of the city decided to build their home by themselves

Does Wu Qiang study harder than Li Guang —_______. Li Guang studies harder.

Liu Ying was very sad. Let’s sing songs to ________.

There is ____________ quality in the students’ability , which demands different teaching methods. [ ]

2. I will be off on business next month. If you write letters and E-mails to me, please _____ all the mails to Mr. Zhang.