Last month, doctors used a 3-D printer to rebuild the face of a person ____ had a bad accident.
—Why don’t you go out to play, Rose? —I’m afraid I can’t. I have much homework _________.
The cloth ___________ very soft and comfortable.
They were all very tired, but _______ of them took a rest.
I have been to Shanghai. I ____________ there last month.
A snake bit him ___________ he went to see a doctor at once.