--Don’t _________ too late, or you will feel sleepy in class.--I won’t, Mum. Good night!
Aunt Betty ______ an English teacher since she graduated from the university.
We hope that we ______ more electrical appliances in our house.
---______ book do you like best?---The one on the left.
What will my lovely son be like______?
The silly crow(乌鸦)wanted to______ its song but none would enjoy it.