ⅰ.单句语法填空(不多于3个单词) 1．what shall we use for power when all the oil in the world has been used ________？ 答案与解析 up use up“用完；用光”。 2．with oil price going up all the time, people are expected ________ (pay) more for traveling. 答案与解析 to pay expect sb. to do为常见搭配。
