An ________ boy, Li Wen, works hard and gets good grades in his final exam.
eighteen-year-olds
eighteen-year-old
eighteen years old
My father _________do business next year.
Mr. Smith is going to be a __________.
-----______ are you going to be a singer? ----- I am going to take singing lessons.
------- What do you think of this sitcom? ------- ____________. It is OK..
This game started in ______1850s.