I think it's necessary to learn how to work in groups．
I quite agree．Sometimes it's even ________ than grades．（ ）
| A． |
less important |
B． |
more important |
| C． |
the least important |
D． |
the most important |
—Must I return this book before Friday，Sir？
—No，you ________，dear.You can keep it for two weeks.（ ）
A．can'tB．shouldn'tC．mustn'tD．needn't
Life is like a one﹣way race，________ treasure every moment as time cannot be won again.（ ）
A．soB．andC．orD．but
Five﹣star hotels can ________ first﹣rate service，making passengers feel at home.（ ）
A．provideB．preventC．protectD．prepare
Our monitor is ________.He never shows off before others.（ ）
A．organizedB．modestC．generousD．energetic
—I hear your brother will enter Tsinghua University this summer.
—Exactly，he was a born genius.He was able to read and write ________ the age of 4.（ ）
A．inB．onC．atD．of