1.Be careful crossing that m__ road on your way to school

---(be) more careful while crossing the road Be careful when crossing the road中的cross为什么加ing Be careful when you are crossing the road,or you ______ get Be careful when you_____the road.A.cross B.crossing C.crosse When crossing the road, you can't be too careful.这句话什么意思? I found a wallet lying on the road on my way to school.怎样理解句 On his way to school,he found a wallet( )on the road .A.lied I found a wallet （lying）on the road on my way to school. Don't______to stranger on your way to and from school ( )the thing you see on your way to school.(draw) we must be careful on our way_________(to school,school)为什么选 road cars be the about the careful on