People are often killed while they are crossing the road. (1) of these people are old people and children. Old people are ofte

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问题     People are often killed while they are crossing the road.  (1)  of these people are old people and children. Old people are often killed because they usually can’t see  (2)  hear very well. Children are killed because they are  (3)  . They forget  (4)    (5)  they cross the road.
    A moving car, truck or bus cannot  (6)  quickly. If a car is going very fast, it will travel  (7)  before it stops. People don’t always understand this.  (8)  a car is traveling, the longer it  (9)  to stop. It is very hard for a person to know how fast a car is traveling.
    The only safe way to cross the road is to look  (10)  . The right way to cross the road is to walk quickly. It’s not safe to run.

选项 A、or
B、but
C、and

答案A

解析 本题考查的是连词的用法。这个连词将see和hear连接起来。鉴于本句的谓语中有否定词not,意思是“他们的听力和视力均不好”。not否定的是两个动词。故选项[A]正确。
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