问题 填空题
选择所给词填空。

when,     how,     if,     because,     while

1. Please tell me ______ I can find the way to DongFang Building.
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.
答案

1. how   2. if    3. when   4. because   5. While

单项选择题
单项选择题