It is only when you nearly lose someone ____________ you fully realize how much you value him.  
#85500
A
do
B
then
C
will
D
that
推荐题目
  —Did you return the book on me? Why can’t I find it anywhere?—_______. You were writing a letter at your desk at that time.
#84672
A
I will give it to you
B
I did give it to you
C
I had given it to you
D
I do give it to you
Was it not until you began to work ___ how much time you had wasted?
#85385
A
did you realize
B
that you realized
C
did you not realize
D
that you didn’t realize