1. 用方框中所给单词的正确形式填空。

pronounce; correct; happen; worry; feel

1. （1） Talk to me when sad and don't keep your problems in your mind.
3. （2） Finally, she had no difficulty the English letters correctly.
5. （3） Though she answered the teacher's questions, the teacher didn't blame her.
7. （4） When I think of the looks of foreign students who are learning Chinese, I can go to study English calmly.
9. （5） What do you think to John if he finds his car has been stolen?