If a computer crashes，you will lose the file you _____ on if you don’t save it early enough.
#103552
A
are working
B
work
C
will work
D
worked
推荐题目
When I got home, I _____ I had left my wallet in the taxi
#102177
A
was realizing
B
realized
C
have realized
D
would realize
The mother didn't know who the glass because it happened when she was out.
#101735
A
break
B
has broken
C
had broken
D
breaks
The Chinese government has made great efforts to ______ the gap between the rich and the poor, but has not achieved obvious results.
#100842
A
abolish
B
conduct
C
drag
D
narrow
They are living with their parents for the moment because their own house _________.
#101299
A
is being built
B
has been rebuilt
C
is rebuilt
D
has rebuilt
It’s nice to see you again. What since we last met?
#100414
A
have you done
B
had you done
C
have you been doing
D
did you do