一、选择题（15分）
1. Mary suggested that I should buy _____ i-Pad for my son as a birthday present. Young people are dreaming about owning ____.
A. a; it B. a; one C. an; one D. an; it
2. He pushed against the rock with all his , hoping to move it to the roadside.
A. strength B. power C. energy D. ability
3. — How much should I pay for the food, Sir?
— It costs ______. The food is free on our ship. ______ needs to pay for it.
A. nothing; Nobody B. none; Anybody C. none; No one D. nothing; Everybody
