I’ll go to the railway station to ______ you ______.

　 A. see; of 　 B. take; off C. see; off 　 D. see; away

I’ll go to World Expo Shanghai this summer vacation.Could you________a suitable hotel?

A．rent 　　　　　　　　　　　　　 B．overlook

C．recommend 　　　　　　　　　　 D．convey

I’ll go to America to strengthen my English _______it isn’t too expensive.　　　　　　　　　　　　　

　 A．except　 B．provided　 C．assumed　 D．unless

I'll go to the library as soon as I finish what I 　　 .

A. was doing　　　　 B. am doing　　　 C. have done　　 D. had been doing