__information he offered us!we all thank him.a.what useful b.what useless c.what a useful d.what a useless

__information he offered us!we all thank him.a.what useful b.what useless c.what a useful d.what a useless He started off into space why did you shave it off?( )he ( ) ( )it off. 是he never shows off 还是show off After he got off the train.RT he got off to a poor start He fell off his bike and hurt himself.=He fell off his bike and( )( ) he fell off his bike but he won't hurthe fell off his bike but he _______ ______ _______ off OFF, set off down的意思是什么?He( set off down) the main street. His day off sounds busy=It ( )( )he had a busy day off He takes off his riancoat.这句中的take off的take为什么是用复数? I'm so pissed-off with his attitude.He pissed me off. He never （） A.show off B.shows off 选什么 He ran off before I could stop him 中ran off 是什么意思? he went off in the direction of it.go off是什么意思?这句话是什么意思?详细 off the 原句是he was certainly quick off the mark.尤其是这个短语,神马意思～