JACK _______ IN LONDON WHEN I LAST SAW HIM.A. IS WORKINGB. WAS WOR...
12. Jack _______ in London when I last saw him.
A. is working
B. was working
C. has worked
D. has been working
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12. Jack _______ in London when I last saw him.
A. is working
B. was working
C. has worked
D. has been working