What do they use to check the bags?

What do they use to check the bags? 改为被动语态 what do they use to reach the student?where do you ex 是what did they use to have?还是what did they use to do? Use your own bags and ask your parents and fiends to do the What do people use the pen to do被动 What do they have in their bags?What,s in their bags?what ar we shuold use ____plastic bags to help the environment.let:' How is the water?What do we use water to do?What can we do t they use paper bags,they don't use plastic bags.they use pap what they should do is to put their money to good use 这里怎么有d they have the f--- to do what they think best. They made full use of the time they could ___ to do experime