知识运用（共25分）
四．单项选择（共10分，每小题1分）
21．Mrs. Smith is very friendly. We all like .
A．me B．you C．her D．him
22．Paul was born ______ 2001. He is fifteen years old.
A．in B．on C．of D．at
23．You’d better get up early, you will miss the first class.
A． so B．and C．or D．but
24．— is your favorite writer?
— Lu Xun. I like his books.
A．Who B．What C．Which D．Whose
