[ Grammar ]
Carl doesn’t look very well. I______he’s sick.
a. think
b. am thinking

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Verbal PhrasesAdjective + to + VerbPerfect TensesAcademic VocabularyGrammar Double Object VerbsTransitive and Intransitive VerbPunctuation and GrammarDependent ClausesPast Simple and Past ProgressiveDependent PrepositionOther quiz:
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