It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.
A. symptom B. similarity C. sample D. shadow
Whether the buildings in this area should be pulled down has remained ________; people are still looking for other possible solutions.
A. unchallenged B. relevant C. controversial D. contradictory
Can you tell the ________ difference between the words “require” and “request”? I sometimes get puzzled by their meanings.
A. dramatic B. regional C. apparent D. subtle
“Perhaps we need to send for Dr. Smith to see what we can do about it,” Father suggested ________ to his neighbor who had come to discuss the problem.
A. tentatively B. thoughtlessly C. definitely D. rudely
On our journey to Australia last summer, our luggage was _____ at the customs. We were not allowed to carry food such as meat and vegetables.
A. looked through B. gone through C. seen through D. got through
Usually a meteorological observatory (����̨) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.
A. identifies B. purifies C. classifies D. clarifies
