When the teacher came in ,everyone was as quiet as a mouse.还有几个Don t believe him .He isa wolf in sheep s clothing.She is 16 years oid and ugly duckling has grown into a swan.I wanted mother s present to be secret,but my sister let the cat out

Question

When the teacher came in ,everyone was as quiet as a mouse.
还有几个Don t believe him .He isa wolf in sheep s clothing.
She is 16 years oid and ugly duckling has grown into a swan.
I wanted mother s present to be secret,but my sister let the cat out of the bag.
It s raining cats and dogs outside.
（十万火急）

Answer 1

第一句,当老师进来时,每个人都很安静.（每个人都安静的像老鼠,不敢动）
第二句,不要相信他,他是个骗子.（他是个披着羊皮的狼,比喻他是个坏人）
第三句,她16岁了,从一只丑小鸭变成了一只天鹅.（女孩由丑到美）
第四句,外面下着滂沱大雨.（下着猫和狗,一种比喻,指雨下的很大,这句话和猫狗没关系）
这些都是英语中一些比喻,使句子更加形象生动,大概意思就是这些.