Ⅰ。单项选择(15分)(每小题1分) ( )1.---_______ on Saturday ? --- I usually watch TV at home. A. How often do you watch TV B. What do you usually do C. Where do you watch TV D. Where do you exercise ( )2. Some of the students watch TV three _______ four ________ a week. A. and, times B. but, time C. or, times D. and, time ( )3. I do homework every day, usually I come _______ home _________ school.