Mrs. Smith is an old friend of _______.
—What is he going to ______ when he ______ up?—He’s going to be a doctor.
I had _____useful umbrella when it rained.
—Jim, remember to return this book by Friday.— .
The book won’t until the end of the year.
—Where would you like to go, Jinan or Qufu?— . I only want to go to Qingdao.