改错：下面每题中有一处错误，请改正并将正确的句子写出来

为你解答。
1、They warned us not （加上to） eat that red fish.
解释：warn sb not to do，警告某人不要做。

2、Jim is very proud with（改为of） his model plane.
解释：be proud of，为……而自豪。

3、The robber hit Tom on (加上the) head heavily.
解释：hit sb on the head，打中某人的头部。

They warned us not 【加 to 】eat that red fish.
Jim is very proud with 【be proud of 以 ....为 豪】his model plane.
The robber hit Tom on【的确是加 the】 head heavily.

另外 之前错了一题
9.I know my maths is poor; I wasn't 【sad 】 to see the result this time.

They warned us not to eat that red fish. warn sb not to do sth.建议或劝告某人（不要）做某事
Jim is very proud of his model plane. be proud of sth. 以····为自豪

The robber hit Tom on the head heavily. hit sth (on/against sth) knock (part of the body) against sth 使（身体部位）磕碰某物