单项选择题
We agreed to accept（）they thought was the best tourist guide.
A.whatever B.whomever C.whichever D.whoever
单项选择题 Wouldn't you rather your child（）to bed early?
单项选择题 Before they left the factory, all the cars were carefully tested for（）
单项选择题 A 200-year-old building is very old in American（）
