He knew that cholera would never be controlled _____ its cause was found.
#32471
A
till
B
still
C
until
D
kill
推荐题目
I toured Jiu Zhai Gou, I was deeply impressed with its beautiful scenery.
#31483
A
For the first time
B
At first
C
It was the first time
D
The first time
Then arose the question _________ we were to get so much money.
#34680
A
where
B
that
C
about which
D
in which
I had been looking for the book for two days _______ I found it at last.
#30963
A
until
B
when
C
while
D
before
The terrible earthquake took place early this month ______ three southern countries meet.
#31954
A
where
B
when
C
that
D
which
________ three times，but she still couldn’t follow what the old man said．
#31621
A
Having told
B
Having been told
C
She had been told
D
Though she had been told