—Are these doctors and nurses tired, Mr. Smith? —Yes. ________. They have been operating on the patient for at least 10 hours.
There was ____time ______I hated to go to school .
---- There is a lot of smoke coming out of the teaching-building there. ---- Really? It _____ be a fire, most probably.
This _________ girl is Mary’s first cousin, who is very lovely.
______, the concert began.
This novel is set in the modern city, San Francisco, so once _______, it will be very popular.