根据要求改写句子。 1. I called the TV station while the alien was eating pizza. (改为否定句) I _________ _________ the TV station while the alien was eating pizza. 2. I was talking to the reporter when the alien came out of the restaurant. (改为一般疑问句) _________ _________ talking to the reporter when the alien came out of the restaurant? 3. The dog got out of the box while Mary was drinking coffee. (对画线部分提问) _________ _________ while Mary was drinking coffee? 4. While I was watching a soap opera , the telephone rang. (对画线部分提问) _________ _________ the telephone ring? 5. My mother was cooking when I got home yesterday. (对画线部分提问) _________ was your mother _________ when you got home yesterday?