The question that puzzles them is ___they can finish the work on time. 
#84854
A
what it is that
B
what is it that
C
how is it that
D
how it is that
推荐题目
I really don’t know ___ ___I kept the secret papers.
#85213
A
where was it
B
it was where that
C
where it was that
D
where was it that
It _______ we had stayed together for a couple of weeks _______ I found we had a lot in common.
#85396
A
was until;when
B
was until;that
C
wasn’t until;when
D
wasn’t until;that