21.You’d better__________the dull parts of the novel.
A. skirt
B. jump
C. leap
D. skip
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22.I__________over the box and fell.
A. dropped
B. tripped
C. traveled
D. tipped
23.The sound is getting on my__________.
A. ears
B. thoughts
C. nerves
D. ideas
24.It will take an__________two days to finish the work.
A. more
B. extra
C. additional
D. another
25.They have analyzed all kinds of__________creating traffic jam.
A. reasons
B. factors
C. facts
D. matters