连词成句 1.had,the,an,little,yesterday,boy,accident.2.travelling,cheaper,by air,is,by train,than

题目

连词成句 1.had,the,an,little,yesterday,boy,accident.2.travelling,cheaper,by air,is,by train,than

答案

The little boy had an accident yesterday.
Travelling by trian is cheaper than by air.