单项选择题
A. but B. or C. if D. so
To handle the delicate situation, you must be()A. more ...
单项选择题To handle the delicate situation, you must be()
A. more careful B. more carefully C. carefully enough D. enough carefully
The search was () when the fog got thicker.A. called of...
单项选择题The search was () when the fog got thicker.
A. called off B. called on C. called in D. called for
Although I spoke to him many times, he never took any (...
单项选择题Although I spoke to him many times, he never took any () of what I said.
A. attention B. notice C. warning D. observation
