A. better cars supplied by producers
    B. fast service offered by car rental firms
    C. the increasing number of white-collar employees
    D. people’s growing interest in traveling during holidays
    （supply在此作動詞，表示“供應”。）
    support
    v. 扶持；支持；擁護；維持；贍養(yǎng)。如：
    I will always support you whatever you do.
    不管你做什么，我都永遠支持你。
    Which team do you support?
    你支持哪一支球隊？
    I need more money to support my family.
    我需要更多錢來養(yǎng)家。
    n. 支撐；支持。如：
    The president won support from the public.
    總統贏得了公眾的支持。 （support是可以通過努力win來的。）
    [身臨其境]
    2003年高考聽力第3題：
     What do we know about mother and son?
     A. She wants to tell him the result of the game