Sometimes he would make himself________in the kitchen by cleaning and tidying.
【正确答案】 C
【答案解析】解析：句意：有时他通过做清洁和打扫卫生而让自己在厨房忙个不停。本题考查的是形容词词义辨析。beautiful美丽的；wonderful精彩的；useful有用的；careful小心的。根据题意，故C正确。