— Do you know how Chinese acupuncture reduces pain?
— Well, well, _______． I’ve never read about that．
A．I can’t tell you B．you really have me there
C．there is some doubt D．what a shame
In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency．
A．held up B．held back
C．held down D．held out
— I don’t remember having ever seen John since last week．Has he gone somewhere?
— Not really．He_______ his newly-bought apartment.
A．has decorated B．was decorating
C．decorated D．has been decorating
— Have you ever been to the Summer Palace?
— I can’t quite remember．_______, it might have been during my childhood.
A．If any B．If ever
C．If possible D．If so
— Your windows are still open? It’s so cold!
— Oh, sorry．They_______ ．
A．aren’t closing B．won’t close
C．won’t be closed D．aren’t closed
We believe the time and hard work _______ in completing such an important project are worthwhile.
A．involved B．involving
C．to involve D．to be involved
