[ Simple Present Tense ]
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 › ViewWhich of the following is an independent clause?
A. the sun is coming through the window
B. when the window is open
C. where the chairs are
D. in the fridge
Vocabulary and Grammar › View
Do you agree with her _______ about your career choice?
A. manager
B. resume
C. advice
D. reward
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.