[ 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 › ViewMy mom had to work from 5 p.m. to 9 p.m. today, so she asked me ___ care of my five-year-old sister after school.
A. take
B. taking
C. to take
D. by taking
Prepositions › View
He doesn’t have a job and still lives ______ his parents.
A. on
B. off
C. up to
D. through
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.