— you sing an English song?—Yes,I can.
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.
下列各组字母中全部是元音字母的是 ____。A. a, e, o, r B. a, i, u, e C. o, u, e, n