It's said that the conference to be held in Room 223 ____ till next Friday.

　　 A. will put off　 B. was put off　 C. has been put off　 D. is putting off

The woman was about to open the door _______ she heard a strange sound from inside.

A. as　　　　　　 B. while　　　　 C. when　　　　 D. then

She told us ________story that we all forgot about the time.

　 A such an interesting　　　　　　　　　　 B such interesting a

　 C so an interesting　　　　　　　　　　　 D a so interesting

After _____ the museum, we will open it to the public next.

 A.completed         B. completing              C. being completed       D. to be completed

"What can I do for you?" or "May I help you?" is a pet phrase used by _____ .

A. an assistant engineer　　 B. an assistant manager

C. a helper　　　 　　　　D. a shop assistant

Standing on the top of the hill, I would not do anything but____the flowing of the smog around me.

 　 A. enjoy　　　　　　 B. enjoying　　　　 C. enjoyed　　　 D. to enjoy

Great changes ______ in our school in the past 10 years.

A took place B have taken place C were taken place D have been taken place

Today's festivals have many origins, some ________ (宗教上的), some seasonal, and some for special people or events.