将下列句子改为含有宾语从句的复合句。

1. Does Mr Brown enjoy living in China? Could you tell me?

    Could you tell me _____  Mr Brown  _____ living in China?

2. "No news is good news. "he said.  He said _____ no news _____ good news.

3. Who invented TV set?  I don't know. I don't know ______  _____ TV set.

4. " Does the girl need any help?" he asked me. He asked me _____ the girl ____ some help.