阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
Bill
is a good boy. He is seven years old, and he likes going to school. But he
cannot get up early.
He
always wakes up until (直到) nine or ten o'clock in the morning.
His
mother doesn't want him to be late for school, so she buys an alarm clock for
him. She says to Bill, "You must get up when you hear the clock ring."
"Yes, Mum," Bill answers. From then on, when he hears the clock ring
at six o'clock in the morning, he gets up quickly.
One
day his mother forgets to wind up (上发条) the clock. And the next morning, Bill doesn't get
up on time. It's time for breakfast, so his mother goes to wake Bill up, Bill
is in bed and his eyes are open. "Why don't you get up?" his mother
asks, "You tell me that I must get up when I hear the clock ring, so I am
waiting for the clock to ring," Bill said.