—Look at the flowers I gave you last week. They are dying! _______ do you water them?—Sorry, I forgot to water them.
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.
Rick has learned a lot about Chinese culture he came to China.