_______ your sister?

六 、语法专练:用所给词的适当形式填空

1.China has become much ______ (strong) than before. We're all proud of her.

2. The boy in blue is _________ (young) of the two boys.

3. Our country is becoming___________ (beautiful).

4. The _________ (careful) you are，the_________ (few) mistakes you will make.

5. Chinese is one of ___________________(popular) languages in the world.

根据汉语完成句子。

1， 刘涛多长时间锻炼一次

_______ _______ does Liu Tao ______?