While building a tunnel through the mountain,______.While building a tunnel through the mountain,______.A.an underground lake was discovered B.there was an underground lake discovered C.a lake was discovered underground D.the workers discovered an un

While a guard slacked_____ ,a thief entered the building.应填哪个介词? After ___ for a while,the whole building fell downA.bowing B.bending C.wiping D.shaking给出理由, I was walking on the street __ suddenly lighting hit the building.A where B while C when D how kat-tun a apartment building还是an apartment building Building a Talented Workforce not inside a building a chinese government building They were building a new hotel while I was there.(划线词：a new hotel) 嗯,大师们帮忙改成被动语态! the ---are ---a tall---.(a.builder,building,building b.builders,build,building c.builders,building,b 求助英语完型第一句为while i was waiting outside my wife's office building,i was a bum coming my way求答案 While building a tunnel through the mountain,______.While building a tunnel through the mountain,______.A.an underground lake was discovered B.there was an underground lake discovered C.a lake was discovered underground D.the workers discovered an un Was kann ich ______ fur Sie tun?A sonstB allerdingstC vergebens求教 building building building “a six-storeyed building”还是“a six-storey building”?为什么? Not inside a building是什么意思