新概念B2L49巩固练习生词填空：_of sleeping on the floor, a young man in Teheran saved up for years to buy a _bed. For the first time in his life, he became the proud _of a bed which had _and a mattress. Because the weather was very hot, he carried the bed on to the _of his house. He slept very well for the first two nights, but on the third night, a storm blew up. A _of wind _the bed off the roof and sent it crashing into the _below. The young man did not wak
