单项选择题
The boy seated himself in the corner with his back ()to his father.
A.turningB.to turnC.to be turnedD.turned
单项选择题 Jane came very close ()a gold medal for Britain in the Olympics.
单项选择题 I am busy now,so I can’t help ()the machine.
单项选择题 How pleased the Emperor was ()what the cheats said!