—Will you be this afternoon, John?
—I am afraid not. I have an appointment with my dentist.
A. convenient
B. suitable
C. accurate
D. Available
网友回答
A. convenient
B. suitable
C. accurate
(答案→)D. Available
解析：考查形容词辨析。Convenient方便的，suitable合适的 accurate准确的 available有空的，可得到的 意为，你下午有空吗？