More teens are smoking in Beijing, ______ the number of primary and middle school students picking up the habit has more than doubled from previous years.
#66683
A
which
B
when
C
where
D
that
推荐题目
It is pretty well understood __________controls the flow of carbon dioxide in and out the atmosphere today.
#74032
A
that
B
when
C
what
D
how
--- Did Tom get back from Jack’s birthday party in time last night? --- Yes. The church clock didn’t strike ten he came back home.
#74235
A
before
B
when
C
immediately
D
as
The reason ______ Old French made contributions to Middle English is ______ English borrowed many words from it.
#69132
A
why; because
B
that; because
C
why; that
D
that; that
