单项选择题
（） of years ago, whales lived （） land and walked on four legs.
A. Millions... on B. Million... in C. Millions... on the D. Million... on
单项选择题 The flowers are so beautiful that I would do （）I can to save them.
单项选择题 Here's a man who just breaks into a bank and helps himself （） so much money.
单项选择题 Summer in （） south of France are dry and sunny.
