we need to wash our hand before meals 改为同义句 It us wash our hands before mealsSmoking may cause cancer .cancer 画线 对划线部分提问 ,smoking cause?
问题描述：
we need to wash our hand before meals 改为同义句 It us wash our hands before meals
Smoking may cause cancer .cancer 画线 对划线部分提问 ,smoking cause?
答
it is necessary for us to wash our .....，这样比较好
答
你在说什么啊？
答
It is nessesary for to wash our hands before meals.
答
needs
what might smoking cause?