Most students think this book is useful as it ____ all the basic grammar rules they        need to know.  

You’d better_  your scores and see if you have passed the exam.                       

To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses.

As we know, a red jacket doesn’t _____ green trousers. But when a little girl wears them, they ____her very well.

Everyone should learn something about first aid，for every second will ________ in an emergency.