题目内容：

单词拼写。根据下列句子及所缺单词的汉语意思，写出单词的正确形式。

1.There were 1200           (申请) for the job.

2.The film was a            (商业的) success.

3.But they           (背叛) themselves every time they open their mouths.

4.After a few years of practice, he became very           (熟练的)at drawing.

5.An old man in           (破旧的) clothes came to the door.