He is a good boy. He often helps .A. our B. us C. we
There ____________ many students in the library after school every day.
Lee came to Beijing in 2005.He has been here ____________ than you.
My sister has two skirts. One is yellow,and____________ is black.
Money is important ____________ it’s not the most important thing.
Einstein,the famous scientist,was born ____________ March,1879.