[ Present Perfect Tense ]
George ____________________(swim) in the big lake.
A. have swam
B. has swam
C. have swum
D. has swum

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Active & Passive VoiceVerb to haveParticiple - ing/ edPassive Modals in Different TensesSimple Past or Past ContinuousModal Verbs - ObligationPreposition of TimeMust Vs Have toPerfect and Past TensesInfinitive and GerundsOther quiz:
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A. You
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A. at
B. in
C. to
D. on