Ⅰ. 单项选择(30分)
1. _______ I walked into class, the teacher had started teaching already.
A. By the time B. While C. After D. Because
2. The water is not _______ enough. Add some more sugar, please.
A. crispy B. sweet C. salty D. sour
3. The dish doesn’t _______ nice. I don’t think it has a good _______.
A. taste; taste B. look；look
C. taste; look D. look; taste
