[ 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:
Present Continuous Tense › ViewThe teacher … the lesson.
A. Is explainning
B. Explainning
C. Are exlpainning
D. Explains
Past Tenses › View
Fill in the blank with the correct past participle form: They have ___ (run) three races today.
A. ran
B. running
C. run
D. runs
Grammar › ViewMiss Chin ____________ us grammar.
A. teach
B. teaches
C. teaching
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Disneyland opens _______Sunday.
A. at
B. in
C. to
D. on