[ Grammar ]
How long have you______________ Mary?
A. meet
B. met
C. know
D. known

Random Topics:
Common Grammar Mistakes and Spelling TipsConditional Sentence Type 0-3Verb PhrasesGerund and To InfinitiveModal Auxiliaries and To Be VerbsAcademic VocabularyAdverbs by TypeVerb FormModals and Past ModalsModal and Auxiliary VerbsOther quiz:
Preposition after some Verbs › ViewMy father cared _______ my mother when she was sick.
A. to
B. for
C. on
D. in
Grammar › View
…. car does your father have?
A. How many
B. Where are
C. How much
D. When
Grammar › View_______________ is the biggest mammal on land, the buffalo or elephant?
A. Where
B. Which
C. Why
D. Who
Grammar › View
If we took the time to tell our loved ones how thankful we are, we … happier ourselves.
A. might not feel
B. could feel but no
C. would also feel
D. feel
