---We can’t get good grades ______ we study harder. ---I agree. That’s why I study so hard.A. because B. if C. unless
Learning to sing English songs is a good ______ to learn English.
Uncle Green’s shop is ______ from 8:00 am to 8:00 pm every day.
---What can I do for you? ---____________.
---How much milk would you like? ---______.
---What colour do you like, madam(女士)? ---______.