There are floors in the building and Mr. Wang lives on the floor.
Hurry up, Mike. You must get to the airport an hour before the plane _______.
—I’m sorry to trouble you, Miss White. —________.
Each of the girls here __________ to the West Lake twice.
You have coughed for several days, Bill. Stop smoking,________ you’ll get better soon.
—I hear that Lily’s brother is a worker here. —Look, the man _________ is working over there is her brother.