1. To understand what we are going to talk about today, you have to rely on what you have read previously.
    A) beforehand
    B) carefully
    C) before
    D) in advance
    2. At the policeman's signal, the vehicle pulled up.
    A) stopped
    B) slowed down
    C) sped up
    D) turned up
    3. Not everyone can perceive the gradual change in the writer's style.
    A) appreciate
    B) notice
    C) describe
    D) discover
    4. It was said that after his father's death, he possessed nearly half of his father's wealth.
    A) wasted
    B) owned
    C) purchased
    D) sold
    5. They all agreed that the changes that have taken place are substantial.
    A) significant
    B) superficial
    C) inadequate
    D) inevitable
    答案：CABBA