选择所给词填空。when, how, if, because, while 1.
题型：填空题
问题：
| 选择所给词填空。 | |
2. You will see many stars in the sky______ you come out at a fine night. 3. I want to ask the teacher ______ we will take a day off. 4. I am mad at him ______ he is playing the stereo too loud. 5. ______ he was stealing the girl's purse, I saw him. |
