_is a pleasure for us to attend the olympic.
A. it
B. that
C. this
D. what
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This book is so _ that I cant't even remember it .
A. obscure
B. clear
C. hard
D. important
The proposal was accept with _ approval.
A. unanimous
B. decision
C. opinion
D. yiven
Trees _ their leaves .
A. shed
B. fall
C. lose
D. sheed
The lock _ shut.
A. snapped
B. snap
C. snaping
D. snaped