[ Grammar ]
I ___ understand why the sky is blue.
A. don’t
B. doesn’t
Select your answer:
Random Topics:
Western Europe CountriesVerb PhraseTenses and StructuresGrammar Double Object VerbsZero and First ConditionalsInterrogative Pronouns & AdverbsModal PossibilitiesIndependent/Dependent Clauses & Relative ClausesModals and Present TensesOther quiz:
Prepositions › ViewBillie Holiday was famous ___ singing the blues.
A. for
B. of
C. with
D. to
Stative Verbs and Tenses › View
Use the stative verb ‘to understand’ in a sentence in the present perfect continuous tense.
A. I have been understanding the concept for hours.
B. She has been understanding the instructions since yesterday.
C. They have been understanding the task all day.
D. I have been understanding the lesson for a few minutes.