Every city in America has commercial buildings that can be made more energy efficient.怎么理解后面的can be made 为什么是被动语态,

Many buildings （）（build ） in our city every year. Peter wants to visit every Hutong in our city in three years. venice is a city in italy.Every year t（） of people visitt the city 求全文! 首字母填空!救命啊Venice is a city in Italy.Every year h____ of people visit the city. 一、用所给单词的适当形式填空 1.It takes me an hour __(walk) to school every day.2.It's ten minutes'__(ride) from my home to school.3.My mother went __(shop) last night.4.What__you __(do) just now?5.We had an __(excite) holiday in Americ 求翻译In every major city there are more empty apartments than there are homeless people There are many cars accidents in the city every year.哪里错了 every morning,wecan see people of all ages have() activities everywhere in the city he has played in ()every large city.even,almost,already应该选哪个 How many buildings are there in your ____ (社区)there is a c______ center in every neighbourhood in our city Of course,every child,________ in the city or in the countryside should go to schoolOf course,every child,_____ in the city or in the countryside should go to school补全空格 The Olympic Games are held every four years in a different city in the world.Athletes from differe every year in every in every Venice is a city in Italy.Every year ( ) of people visit the city.括号里填什么?是h开头的！ in city还是in the city? in city还是in the city he has already been ro nearly every city in china.我想问一下,如果这句话这么写行不行,he has nearly been to every city in china,这样写行吗,如果不行,为什么,