Mr and Mrs Brown lived in a small house near London with their small child.Sometimes Mr Brown came back from work very late when his wife and child were asleep, and then he opened the front door of the house with his key and came in quietly.
But one night when he was coming home late after work, he lost his key.So he rang the bell when he reached his house.Nothing happened.He rang it again.Again nothing happened.Nobody moved inside the house.Mr Brown knocked at the bedroom window.He spoke to his wife.He shouted, but she did not wake up.At last he stopped and thought for a few seconds.Then he began to speak like a small child.“Mum!”he said,“I want to go to the lavatory(厕所)!”She woke up and opened the door for him.
(1)
Mr Brown came home late at times because ________.
[ ]
A.
he lived far away from the city
B.
he didn't like to go home early
C.
he got off work late
D.
he knew his wife and child had gone to bed early
(2)
When Mr Brown was late, he usually came into the house ________.
[ ]
A.
by the back door
B.
by opening the door with his own key
C.
by knocking at the window
D.
by calling his wife to open the door for him
(3)
That night Mr Brown could not get in at first because ________.