When the man came in, gun in hand, we all stood there, ________.
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A
frightened
B
frightening
C
being frightened
D
having frightened
推荐题目
The rooms need ____. Our guests are coming tomorrow. 
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A
to clean
B
cleaning
C
cleaned
D
being cleaned
The lost child desired nothing but _____ home.
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A
go
B
to go
C
going .
D
went
The brave man died,       his young wife with a       cottage.
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A
left; breaking
B
leaving; broken
C
left; broken
D
to leave; breaking
It took a long time for the effective use of natural gas ______.
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A
making
B
being made
C
to make
D
to be made