[ Grammar ]
I am very tired ………. I have been working all day.
A. And
B. Because
C. Or
D. But

Random Topics:
Past ModalsComparatives, Superlatives, and ModalsDistinguishing Future TensesArticles & Compound NounsModals of ProbabilityInfinitiveVerb FormTenses (Present, Past, Future Forms)Although / DespiteIdiomsOther quiz:
Modals › ViewYou … tell me your secret if you don’t want to.
A. have not to
B. not have to
C. don’t have to
WH- Question Words › View
_______ asks about animals, places, or things.
A. what
B. who
C. whose
D. where
E. when