A. keep quiet B. kept quiet C. stay at home D. you stay at home.

【答案】C

【解析】

考查固定搭配。句意：句意：周末我宁愿待在家里也不愿意出去。固定短语would rather do sth than do sth宁愿做某事也不愿做某事；would rather后面要接动词原形。A项与句意不搭配。故C项正确。