I showed several old friends of mine around the city, _________ surprise，the changes had been so great.
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A
whose
B
to whose
C
which
D
to which
推荐题目
The reason______ she failed to go to the party puzzled all of the people present.
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A
what
B
why
C
as
D
which
There are two buildings, ____stands near a hundred feet high.
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A
the larger of which
B
the larger of them
C
the larger one that
D
the larger
The book was written in 1946, _____ the education system has witnessed great changes.
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A
when
B
during which
C
since when
D
since then
---Three people got killed by two explosions.---When was __________?---________ was on April 15 __________ the 2013 Boston Marathon was being held．
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A
that; It; when
B
this; This; that
C
this; It; when
D
that; It; that