1、Earthquakes occur without warning; however, it is claimed that some animals can feel earthquakes ( ) occurrences because of their highly sensitive organs.
A、ahead
B、prior to
C、meanwhile
D、after
2、It is ( ) for every family to make earthquake emergency plans
A、sensitive
B、sentimental
C、sensational
D、sensible
3、People used to think the development of electronics may ( ), but now more and more letters and documents travel electronically.
A、amount to much
B、amount of much
C、not amount to much
D、not amount of much
4、Ford tried dividing the labor，each worker _________ a separate task．
A、assigning
B、assigned
C、was assigned
D、would be assigned
5、The article opens and closes with descriptions of two news reports，each one major point ( ) the other．
A、in contrast with
B、contrasted
C、compared with
D、by contrast
