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
 ---- Kate is in hospital.---- Oh, really? I _______. ________ visit her.
#104112
A
didn’t know; I’ll go and
B
don’t know; I’ll go and
C
don’t know; I’m going to
D
didn’t know; I’m going to
I______toward the door to go outside when suddenly Jim opened it.
#99533
A
was walking
B
walked
C
hadwalked
D
walk