9. Who should I ask about car rentals?
我该向谁询问租车事宜？
还能这样说：
Who can tell me about car rentals?
Who would like to give me some information about car rentals?
应用解析：
ask是最常用的词，指为了了解某人或某事而提出问题，请别人解答或向别人打听消息；
inquire是较正式的书面用词，含有渴望知道某人或某事确实情况的意思；
question指对某事不断提出问题，以便了解详细情况。
10. I'd like to rent a car.
我想租辆车。
还能这样说：
I want to rent a car.
I need to hire a car.
应用解析：
hire out 租出去；
hire oneself out 受雇；
on hire 出租；
for hire 出租
11. What kind of car would you like to rent?
你想租什么类型的车？
还能这样说：
Which car will you rent?
What style of car do you like to hire?
应用解析：
beat the car 非常，厉害地；
pleasure car 游览车
12. It is convenient to drive by yourself when go traveling.
自己开车旅游很方便。
还能这样说：
Self-driving traveling provides much convenience.
It is easy to go traveling by driving yourself.
应用解析：
provide for old age 防老；
provide against flood 防洪；
provide for one's children 抚养子女