单项选择题
One of the sides of the board should be painted yellow, and （） white.
A. the other is B. the other C. another D. another is
单项选择题 （） of years ago, whales lived （） land and walked on four legs.
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.
