I first met your sister ten years ago, when she ____at a supermarket as a salesgirl. 
#102409
A
has worked
B
had worked
C
was working
D
had been working
推荐题目
—Ann is in hospital.—Oh,really? I ________know.I         _____go and visit her.
#101686
A
didn’t; am going to
B
don’t; would
C
don’t; will
D
didn’t; will
Please don’t make so much noise.I     a novel.
#101730
A
writes
B
am writing
C
wrote
D
was writing
--- Why does the lake smell terrible?--- Because large quantities of water _________.
#101273
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted