They arrived at a farmhouse，in front of ________ sat a small boy.
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A
whom
B
who
C
which
D
that
推荐题目
The only system I know ____ will help you remember what you have heard at a lecture is the system of keeping notes.
#75516
A
what
B
that
C
where
D
one
It was 1969___ the American astronauts succeeded in landing on the moon.
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A
that
B
when
C
on which
D
which
In a sport team each player has a clear role，and there are few occasions ___________ members are confused or uncertain of their roles.
#75952
A
why
B
that
C
when
D
in which
Both the girl and her dog ______ were crossing the street were hit by a coming car.
#77122
A
which
B
what
C
that
D
they
My desk-mate, Beth comes from a tradition people dress up for particularly popular sporting events.
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A
when
B
where
C
how
D
why