(2014河北83题)We should always speak________ (polite)to our parents.
My sister is a kind girl. She always thinks ________ of others than herself.
A.much B.more C.the more D.most
（2017 • 上海中考）Alex believes he will soon be able to play chess as __________ as the computer.
A.well B.better C.best D.the best
What a clear blue sky it is! I have never seen________ sky before.
A.a beautiful B.a more beautiful C.more beautiful D.the most beautiful
Of all the drinks, tea is ________ in the world. It has a history of about 5,000 years.
A.old B.older C.the older D.the oldest
Jack likes eating meat very much these days, so he becomes much ________ than before.
A.thin B.thinner C.heavy D.heavier
