Choose the best answer among A, B, C, or D

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Exercise 2: Choose the best answer among A, B, C, or D.
1. When I last saw him, he __ in London.
A. has lived B. is living C. was living D. been living
2. We __ Dorothy since last Saturday.
A. don’t see B. haven’t seen C. did’t see D. hadn’t seen
3. The train __ half an hour ago.
A. has been leaving B. left C. has left D. had left
4. Jack __ the door yesterday.
A. has just painted B. painted C. were painting D. painting
5. My sister _____ for you since yesterday.
A. is looking B. was looking C. has looked D. looked
6. Texas State University now.