—World Sleep Day falls on March 21st. Do you think sleep is important?
—I think so. Sleeping well can give you enough ________.
courage
energy
reason
-Where is Jim? -He_______ the teachers' office.
-I can't stop smoking, doctor. -For your health, I'm afraid you_______.
Learning_______ country's language is a better way knowing of_______ culture behind it.
- My family will go to Hainan to spend the winter holiday. - Oh, wonderful! _______.
She_______ the homework today. She may do it tomorrow.