－prlfessor, do you have something at this moment?
－No,thanks.I'llcall you if there is any.
A. typing B．typed C．to type D．to be typed
I’ve just seen no more than one copy of“ Gone with the Wind”in the bookshop opposite. Tom, go and buy ________ back.
A. one B. any C. it D. some
Accounting is described as ________ science of classifying, recording and reporting ________ important financial events.
A. an, theB. a, 不填C. 不填, 不填D. 不填, the
It never occurred to me you could succeed in persuading him to change his mind.
A．which B．what C．that D．if
_________ from the space, the Great Wall lies in the mountains like a huge dragon.
A. Seeing B. Seen C. To see D. Having seen
With so much noise of the traffic, I couldn’t ______ and do my research work．
A．put down B．settle down C．break down D．take down
