7. He (not, be) here since Christmas, I wonder where he (live) since then
8. His classmate (wait) for him since 8 o'clock.
9. How long you (study) E? For 5 years.
10.1 (not receive) any answers from the university yet
11. They (be) here for days?
12. The Browns (live) in a new flat sin ...
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