问题补充：
We preferalone rather than.
A. staying; go out
B. staying; going out
C. to stay; to go out
D. to stay; go out
答案：
A. staying; go out
B. staying; going out
C. to stay; to go out
(答案→)D. to stay; go out
解析：考察固定搭配。固定搭配prefer to do sth rather than do sth宁愿做某事也不愿意做某事；句意：我们宁愿待在家里也不愿意外出。故D正确。
