3324+5168+90735+4432=____

下列说法正确的是（　　）

下图是电解水的示意图。关于电解水的下列说法中，不正确的是  (    )

        One day, when Zhou Kai’s mother saw him ____ (head) towards the front door without a jacket on, she eyed him with____ (anxious). She asked him____ (put) on my jacket and he did ____ he was told.

         His mother always makes sure the family eat ____ . For example, they have fish four times a week. Zhou Kai very ____ (rare) gets colds but last week he had____  bad cold and a bit of a fever. How come? That’s____ he was stupid____  to play football in the rain. So you can see how crazy he is____  football.