根据下列情景，选择最佳答案。
1. 如果你想问别人今天是星期几时，应该说： [ ]
A. What time is it?
B. What day is it today?
C. What's the date?
2. 当你想问别人在周日做了些什么时，应该说：[ ]
A. What do you do?
B. What do you do on Saturdays?
C. What do you do on Sundays?
3. 如果你想问别人周一是否上英语课时，应该说：[ ]
A. Do you have English on Mondays?
B. Do you have Chinese on Mondays?
C. We have English on Mondays.
4. 当你告诉别人今天是母亲节时，应该说：[ ]
A. Today is Mother Day.
B. Today is Mother's Day.
C. Today is Father's Day.
