The research is so designed that once _____ nothing can be done to change it.
#95029
A
begins
B
having begun
C
beginning
D
begun
推荐题目
He knew the problem was serious and promised to look into it _____ he reached office.
#94818
A
at that moment
B
for that moment
C
immediately
D
soon
----These days many fan-boys are queuing for the latest iPhone 5.----Yes, but is still some doubt it is really better than iPhone 4s.
#92136
A
there; whether
B
it; whether
C
there; that
D
it; that
_____ is no need to argue again the problem.We settled it at the last meeting.
#95150
A
It
B
What
C
There
D
Which
I kept looking at the man, wondering _______.
#93460
A
whether I have seen him before
B
whether I had seen him before
C
that I had seen him before
D
when I saw him before