[ Tenses ]
. By next month, they __________ each other for a decade.
A. have known
B. had known
C. will have known
Select your answer:

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Grammar: Morphology-ing &-ed AdjectivesConjunctions and ClausesTenses and StructuresPassive Voice and ModalsModals and Modal PerfectsIdentifying TensesPast Tense (Regular and Irregular)Passive Voice, Modals of Deduction and First ConditionalDEGREE COMPARISONOther quiz:
Adjectives › ViewCreekside is an amazing school!
A. Creekside
B. is
C. amazing
D. school
Grammar › View
Is the following group of words a sentence or fragment?
Put the lantern under the seat.
A. Sentence
B. Fragment
