[ Grammar ]
Jeff _____ about changing his field of study.
A. Has been thought
B. Have been thinking
C. Has been think
D. Has been thinking

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Past Simple Negative & QuestionsPRESENT SIMPLE - CHILDRENNounPast Tense (Regular and Irregular)Adverbs or AdjectivesAcademic VocabularyPresent Simple vs Past SimpleUnless If First ConditionalTime Clauses of FutureComplex SentencesOther quiz:
Grammar › ViewI don’t have _________ money to buy a computer.
A. too much
B. very much
C. enough
D. little
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He ______________ the guitar for a few months, but stopped last week.
A. has played
B. played
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A. rainboe
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Adam is really good at_____________
A. swimming
B. to swim