_____ I admit that all these problems are difficult, I don’t agree that they cannot be solved.
#31404
A
Unless
B
While
C
Until
D
Since
推荐题目
Before the meeting, Jack went over the report again ______ a mistake might occur.
#31902
A
while
B
in case
C
so that
D
even if
The notice says _________ you are, you must show your tickets to enter the exhibition.
#31117
A
whoever
B
who
C
however
D
Whom
His father got him a job in a bank but soon it became clear he was not fit for that kind of work.
#30610
A
why
B
what
C
whether
D
that