第1个回答 2010-04-27
It's cold . you'd better put on more clothes
第2个回答 2010-04-27
It's cold so that you should wear more clothes.
第3个回答 2010-04-27
it's cold ,you had better wear more clothes
it's cold,you should wear more clothes
两个都可以用本回答被提问者采纳
第4个回答 2010-04-27
You should wear more clothes for it is cold。