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
Several weeks had gone by____I realized the painting was missing.
#31267
A
as
B
before
C
since
D
when
He told me the information everybody here could be paid well the next year.
#30603
A
whenever
B
whoever
C
that
D
whichever
The government has taken some measures to solve the problem of unemployment, but it may be some time ______ the situation becomes better.
#30982
A
before
B
since
C
after
D
unless
You seem to have a readymade answer ________ I ask you a question.
#30271
A
whenever
B
whatever
C
whichever
D
whoever
he is poor, he’s ready to help his friends who are in trouble, which makes him very popular.
#31991
A
Although
B
However
C
As
D
Whether