23. Almost everyone has his own strengths and weaknesses. It is ________ others are weak that maybe you have a great advantage.

A. as　　 B. where　　　 C. that　　　　 D. what

22. Don’t you think it essential that every resident of Nanjing __________ spare no effort to make contributions to Nanjing 2014 Youth Olympic Games?

　　 A．should　　　　　　　　　　 B．will　　　　　　　　　　　　 C．shall　　　　　　　　　　　　 D．would

第一节　 单项填空(共15小题；每小题1分，满分15分)

21. - Oh , must you ? Stay a bit longer. It has been such ______ fun having you here.

　 - Thanks. I’ve got______ early start tomorrow morning.

A. a; an　　　　　 B./; the　　　　　　 C./; an　　　　　 D. the ;/