位于鄂尔多斯的东胜、准格尔附近沙漠形成的主要原因是（    ）

Mary keeps talking about the party. She had a very good time,_______?

写出近义词。

贫瘠—____                   保护—____                咆哮—____

世界上使用人口最多的语言是____语，使用范围最广的语言是____语。

    My name is Ann．I____in Flower Street．I usually go to school on____. ____ I go by bike．My home is not____from my school．Go____from the west school gate，turn left at the library．Walk about four____．You can see a post office on the____side．My home is____the post office．