The entrance exam is only fifteen days away from now. You will fail the exam ______ you study hard from now on.
Lucy is sending a letter to her parents. They will ______ it in five days.
Would you like to ______ 100 yuan for the watch?
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? ---____________.