用方框中所给词的适当形式填空，每词限用一次。

help ,    study,      succeed,    warn    listen,   have

 
It’s a good idea              parents to do something instead.
How about              conversations with friends in English?
He thinks __________ English grammar is too boring.
----Where is John?
----He             to the tapes in his bedroom.
I’m sure that you will______   ___ in passing the math exam.
He ____    _me to follow the school rules if I don’t want to be punished.