单项选择题
The wind was so strong last night that is tore the （）of the ship into two or three pieces.
A．mask B．mine C．sail D．satellite
单项选择题 I would have told him about the change of time for the class, （） to class last time.
单项选择题 It is very（） of you to arrange an early meeting between your boss and our team.
单项选择题 He failed to live up to （） had been expected of him.
