问题
选择题
—The little girl’s bedroom is very clean.
—Yes. It’s much ________ than her ________.
A．clean; brother
B．cleaner; brother
C．clean; brother’s
D．cleaner; brother’s
答案
答案：D
句中有than所以要用比较级，而比较的对象是房间，所以要用名词的所有格形式。故选D。