碳素钢的含碳量低于（）％A.0.6 B.0.25 C.2.11

用方框中所给的单词的适当形式填空，每词限用一次。

if  healthy  advice  realize  enough

小题1:Dave is not old ________to drive a car. He is only thirteen years old.
小题2:You should consider my ________ when you go there.
小题3:Keep smiling and have a happier, ________ and better life.  
小题4:Mr. Clark will get angry ________you don’t return the book on time.
小题5:Nothing can prevent us from        our “Chinese Dream”