用括号里所给单词改写句子I was walking. I heard a strange noise. (while)
举一反三
- 用所给单词的正确形式填空Alice ____ (freeze) with terror when she heard the strange noise.
- One day while I ______ along the street, I ______ someone calling. A: walked ;was hearing B: was walking; has heard C: was walking; heard
- .........................(When, While) he heard a strange noise downstairs, he got out of his bed to investigate.
- Never in my life______such a strange thing. A: do I have heard B: have I heard C: I heard D: I have heard
- 练习：用括号里所给单词的正确形式填空。