[ Vocabulary ]
What does the prefix “un-” mean in the word unhappy?
A. Very
B. Not
C. Again
D. Over
Select your answer:

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Present Perfect Tense › ViewWe …………………. Mary ……………. 2015.
A. haven’t seen / for
B. haven’t seen / since
C. hasn’t saw / since
D. didn’t see / for
Grammar › View
Now that my knee has healed, I’m running ______ again
A. quick
B. quickly
