3.     He is teaching in his hometown now, but he________ in a hospital for 10 years. 
#104484
A
worked
B
has worked
C
had worked
D
has been working
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The flowers were so lovely that they ______ in no time. 
#101048
A
sold
B
had been sold
C
were sold
D
would sell
 ---May I use your computer, Alex? ---Sorry. Mine _____. 
#103334
A
has repaired
B
is being repaired
C
has been repaired
D
is repairing
But for the fact that the firefighters _____ at the spot in time, more people ______ their lives in the fire.
#103589
A
arrived; died
B
had arrived; would lose
C
arrived; would have lost
D
has arrived; could have lost