A total of 548 students fell ill ______ consuming milk and biscuits in schools in Northwest China's Qinghai province on Wednesday, local authorities said.
#31253
A
before
B
when
C
after
D
while
推荐题目
When I got to the checkout counter, I realized I didn’t have enough money, so I kept ________ I really needed and left the rest．
#33433
A
what
B
which
C
that
D
this
It will be long she sees Mr. White again at Beijing, business has just started in Switzerland.
#30595
A
after; who
B
since; who
C
when; whose
D
before; whose
We should consider the professor’s advice _______ our school library provide more books on popular science.
#34143
A
that
B
when
C
which
D
where