The visitors saw rows of houses the roofs _______are red.
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A
where
B
that
C
what
D
of which
推荐题目
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
The reason he didn’t go to school yesterday was he was ill．
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A
why；that
B
that；because
C
that；that
D
for which；what
Our goal is to build a harmonious society ______ all people are well educated, workerswell paid, patients well treated, elders well tended, and families well accommodated.
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A
which
B
that
C
in which
D
in that
The reason_____ she gave for not being present was _____the heavy snow prevented her coming.
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A
why; because
B
why; whether
C
that; that
D
how; that