— What do you need?—I need a _____

试题详情及答案解析: — What do you need?
—I need a ______ black shoes for school.
A.a pair B. a pair of C. pair of; 答案：C; 试题分析：句意：—你需要什么？—我需要一双上学穿的黑色鞋。A pair of一双，故选C。
考点：考查短语辨析。