------I didn’t go to the party _________my homework last night.
------Oh! ___________
| A．because, What a pity! | B．because of, What a shame! |
| C．because, I’m sorry to hear that. | D．because of, That’s right. |
【2012北京】—Is your father home?
—No，he’s working late ____ the office.
| A．on | B．at | C．of | D．to |
【2012.安徽省】Welcome to our hotel! I hope you’ll have a good time ____ your stay here.
| A．after | B．during | C．with | D．since |
【2012贵州贵阳】Linda is not good at Chinese, but she passed the exam ______ the help of her classmates.
A. with B. under C. without
【2012贵州毕节】 Her mother goes to work ______ bus every morning.
| A．by | B．at | C．on | D．in |
【2012福建福州】Bill has made great progress _____________the help of his teachers.
A. for B. with C. under