单项选择题A. Automobiles in US are lagging behind in using ethanol. B. Only a small number of car models operate on high-ethanol fuel. C. Not many gas stations offer the service of filling ethanol. D. The cars using ethanol are too expensive to buy.
单项选择题A. The pay offered by the company is not enough to support herself. B. The pay offered by the company is less than that by her previous company. C. The pay offered by the company does not equal to her devotion to the company. D. The pay offered by the company goes beyond her imagination.