.________they were singing, the teacher came in.
#72179
A
Before
B
after
C
As
D
Until
推荐题目
The great scientist became world-known in the early 1970s,______ he and another scientist made new discoveries about black holes.
#73597
A
which
B
where
C
when
D
then
The poor girl across the road a car knocked her down.
#41276
A
walked; while
B
walked; since
C
was walking; until
D
was walking; when
(2013·辽宁五校协作体一联)Willpower is a kind of quality, ________ is ________ it takes to do anything well.
#67325
A
what; which
B
what; what
C
which; which
D
which; what
There are roughly 1, 000 students in Grade Two, most of _____ are girls.
#66720
A
which
B
them
C
whose
D
whom
Today the public is much concerned about the way _______ .
#74364
A
nature is being ruined
B
which nature is ruined
C
on which to ruin nature
D
of nature to be ruined