I ___________ (not, know) what you mean.
A. Doesn’t know
B. Not know
C. Don’t know

Random Topics:
Formal & Informal WordsAdverbs or AdjectivesThere is, There are, Some, AnyTenses and ConclusionsSimple Present TenseModals - Conditionals - Future TensesQuantifiers & Modals of ObligationIndependent and Dependent ClausesSentence Adverbs & Third ConditionalComparative AdverbsOther quiz:
Grammar › ViewInversion: _______ but also it filters out harmful rays.
A. Not only does the environment give us air to breathe
B. The environment which gives us air to breathe
C. The environment gives us air to breathe
D. Not only the environment gives us air to breathe
Vocabulary › View
What does the word chivalry mean?
A. being courteous and polite
B. uncertain or unstable
C. very angry
D. no longer used
Prepositions and Prepositional Phrases › ViewRick found a strange bug _________.
A. during the movie.
B. on the tree.
C. to another bank.
D. after the test
Grammar › View
Which of the following questions is written correctly?
A. The boy wanted a new Chevy, but he could only afford a used truck.
B. the boy wanted a new chevy but he could only afford a used truck
C. The boy wanted a new chevy but he could only afford a used truck.