用适当的介词或副词填空1.We can change water_______ gas2.You must look _
用适当的介词或副词填空
1.We can change water_______ gas
2.You must look ______ the peep-hole befor you open the door
3.It's like water,______ a way
4.We must be careful _______ electricity
5.I've no idea.Can you think ______ a good idea?