Ⅰ.单词拼写
1．When building ________ (材料) cost more, the price of houses in creases.
2．It is still under discussion whether the old bus station should be ________ (代替) with a modern hotel or not.
3．Nowadays, many ________ (消费者) prefer to shop on the Internet.
4．The audience was so large that no seat was left in the ________ (宏伟的) hall.
5．They lost their way in the ________ (沙漠) and died of thirst.
6．His house was close to the ________ (天文台)．
7．When he had finished washing, he began to wipe the ________ (盆) clean.
8．He overcame the language ________ (障碍)．
