从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21．We had over 120,000 people here at weekend and expect to have up to third of that number on the beach today.
A．the; a B．the; the C．不填；a D．a; the
22．--- Do you mind if I look at your notes?
--- Of course not.
A．Be my guest. B．My pleasure. C．It depends. D．Do what you want to.
23．She is the only one among the writers who stories for children.
A．woman; writes B．women; writes C．women; write D．woman; write
24．Life is too short to waste and too to give up.
A．expensive B．ordinary C．fragile D．precious
