单选题 ______ this dull life, the full-time room decided to find a part-time job.
A. Tied up with B. Fed up with
C. Wrapped up with D. Piled up with

【正确答案】 B

【答案解析】[解析] be tied up with忙于；be fed up with厌倦；wrap up with用掩饰，伪装，使全神贯注，拥围好围巾，包起来；be piled up with累计成堆。