[ Grammar ]
Mark _____________ (study) biology since high school. (PRESENT PERFECT TENSE)
A. has studied
B. had studied
C. will have studied
Select your answer:
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Tenses › ViewKarate is a great exercise for me, but learning how to ________ karate well takes a lot of time.
A. go
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Grammar › View
Everybody enjoyed the concert, so _____ stood up and clapped
A. their
B. they
C. we
D. us
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