After a careful survey about the cause of the newly-built bridge, they finally came to a(n) _________ that it was due to the heavy rain.
A. construction B. motivation C. conclusion D. impression
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
