He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system ____.
A. broke in B. broke up C. broke out D. broke down
Computers and mobile phones, though they are indeed making our life ____ and more ____, have reduced the need for face-to-face communications.
A. easily; efficient B. easier; efficient C. easy; efficiently D. easily; efficiently
The woman ____there under the tree, ____ in a blue shirt, is our headmaster.
A .sitting; wearing B. sitting; dressed C. seating; dressed D. seated; dressing
The new technology, if____ to farming, will help increase the grain output.
A. applying B. to apply C. applied D. having applied
More and more high-rise buildings have been built in big cities____ space.
A. in search of B. in place of C. for lack of D. for fear of
Nowadays, more and more people like to hunt for what they want at www.taobao.com and have them ____ by the express company.
A. delivering B. delivere
d C. to deliver D. deliver
