Although the price of the gas many people still plan to buy private cars.A. goes downB.

问题补充：

Although the price of the gas , many people still plan to buy private cars.

A. goes down

B. goes up

C. goes on

D. goes ahead

答案：

A. goes down

(答案→)B. goes up

C. goes on

D. goes ahead

解析：考查固定词组，goes down意思“下降”，goes up意思“上升”，goes on意思“继续”，goes ahead意思“前进”，句子意思“尽管天然气价格上升，但是许多人仍然计划买私家车”，所以选B