Whatever you do, ________ is difficult if you put your heart into it.

China is a country with ________resources.— That’s true. But China is also a country with the largest number of people.

________ one of the people from Sichuan, I’m proud _______ it. —Me, too. They are so brave in such a terrible earthquake! [ ]

I can’t stay up late. I have to go to bed__________11:00.[ ]

What useful book! And book was given to me by my father as a birthday present last year.