单项选择题
In addition to rice, we need to（）our diet with fish, meat and vegetable.
A.supplement B.replace C.add D.eat
单项选择题 My parents are not interested in modern music. They are（）the times.
单项选择题 Edgar began（）as an office boy years ago.
单项选择题 The public transports system in many cities in the world（）by the local authority.
