He has been used to walking to school为什么 to 后面可以跟ing形式?

He has been used to walking to school为什么 to 后面可以跟ing形式? My grandpa in Shanghai though he in the northMy grandpa in Shanghai though he in the northA.has been used to the life,used to liveB.has been used to live,used to livingC.has used to live,used to liveD.has been to living,used to the life he has been used to the life in the countryside.为什么be used to 后加名词 John has been sick for a long time,so he __pain.A.used to B.is used to He has been a_____ for 5 years and now he's been used to the life in another country He has been used to ------- here A.stay B.be C.live D.living 一个关于used to do、be used to doing等意思及用法的选择题He ( ) in the south.Now he has been ( ) in the south.A.used to live;used to the lifeB.used to living;used to live C.used to the life;used to livingD.used to life;used to live My grandfather is not willig to move to the city for he ___ to the life in the countryA usedB has usedC has been usedD had been used He finds that land pollution has been caused around the area where he used to work. 是什么意思? He used to ________ in a small village,but now he has been used to ____ in the big cityA,live;livingB,live;liveC,living;livingD,living;live He used to () in a small village,but now he has been used to () a big city.A.live;livingB.live;livec.living;living Mr.brown used _coffee but he has been used _ tea since he came to China two years agoMr.brown used _coffee but he has been used _ tea since he came to China two years ago.A.to drink ,to drink B.to drinking,to drink C.to drink ,to drinking D.to drinki 选择：Every possible means ( ) to prevent the air pollutionis used?are used?has been used?have been used? the house where i used to live has been knocked mr green has been used to jogging_________ ( day) he has been to beijing.什么时态? He_eating American food since he came here.Aused toBhave been usedChave been used toDwas used to He think he has been to shanghai ,does he.