When you boil the milk you must it carefully.
A. look at
B. notice
C. see
D. watch
网友回答
A. look at
B. notice
C. see
(答案→)D. watch
解析:本句意思是“当你煮牛奶时,你必须仔细看着”。四个选项都有看的意思,但有区别。look at“朝……看”,表示看的动作;notice“注意到”,强调注意或引起注意;see“看见”,强调看的结果;watch“观看”,强调的是密切注视。句意为:“煮牛奶时必须密切注视,否则稍有疏忽就会煮沸了。”