If a computer crashes,you will lose the file you _____ on unless you save it regularly.
#104026
A
are working
B
work
C
will work
D
worked
推荐题目
—The former president of Iraq was caught at last.—Really? Where himself?
#104842
A
has he hidden
B
had he hidden
C
was he hidden
D
has he been hidden
---Hurry, John!---Oh, damn! Both my legs are nearly to give out. I ____for hours.
#101892
A
had walked
B
walked
C
have been walking
D
am walking
---Are you two old acquaintances? ---Yes, we _____ in the same neighborhood for quite a long time, though he went abroad with his family at 14.
#101381
A
have lived
B
have been living
C
were living
D
lived
—It’s five years since I here.—Where do you work now?
#101172
A
work
B
worked
C
has worked
D
had worked
― Has Jackson finished his work today? ― I have no idea, but he ______ it when I saw him this morning.
#103638
A
had done
B
would do
C
was doing
D
would have done