How many hours of operation are there every day
举一反三
- How many hours a day does George spend every day studying in college?
- How many hours do you spend ____ learning English every day?
- How many hours is the store open every day during its sale days ______ hours.
- How many hours do you spend ____ learning English every day? A: in B: out C: of D: from
- How many hours do we usually spend in sleeping a day？