—How old is Ms Jessica?—Don’t ask her how old she is—she’s really about it.A. particularB

问题补充：

—How old is Ms Jessica?

—Don’t ask her how old she is—she’s really about it.

A. particular

B. cautious

C. sensitive

D. anxious

答案：

A. particular

B. cautious

(答案→)C. sensitive

D. anxious

解析：考察形容词固定搭配。Be particular about…对…挑剔；be cautious about…对…谨慎；be sensitive to/about…对…敏感；be anxious about…对…焦虑；句意：—Ms Jessica今年多大了？—不要问她多大了。她真的很敏感的。根据句意说明C正确。