Tom'sschoolwasontheothersideoftheroad,sohewastoldtowatchoutforcarswhent__________hestreet.
A.crossing B.cross C.crossed D.to cross正确答案A
Tom'sschoolwasontheothersideoftheroad,sohewastoldtowatchoutforcarswhent__________hestreet.
A.crossing B.cross C.crossed D.to cross正确答案A