As the sea ice melts sooner each swimmer,polar bears are forced to come ashore earlier and face food shortages _____ they have stored enough fat to last them through the season.
#31875
A
before
B
unless
C
since
D
until
推荐题目
---What do you think worries him so much? ----____.
#34612
A
He didn’t pass the exam
B
His father is seriously ill
C
Lost his bike
D
What Jim said just now
The American economy is still in trouble，________ the Chinese economy is beginning to pick up.
#32644
A
when
B
however
C
while
D
therefore
Parents and teachers in Shaanxi are happy about the news_____ more students will be admitted to universities, ______ makes students happy as well.
#31916
A
that; which
B
what; which
C
that; that
D
which; which
As a child，Jack studied in a village school，________ is named after his grandfather.(2010·新课标全国Ⅰ，24)
#30500
A
which
B
where
C
what
D
that