[ Verb Tenses ]
I ______ my best friend since we were in first grade.
A. know
B. knew
C. have known
D. was knowing

Random Topics:
Simple Past - Irregular VerbsTenses and VoiceComparison DegreeGrammar and AbsenceSimple vs Present Continuous TensesHabitual and Continuous TensesAsking & Giving OpinionTenses (Present, Past, Future Forms)First ConditionalPhrase and ClauseOther quiz:
Conditional Sentences Type I, II › ViewIf he _________ steadily, he wouldn’t fail.
A. studies
B. had studied
C. studied
D. was studying
Grammar › View
We _____to start yesterday, not today
A. can’t
B. needed
C. need
D. can’t
Past Tenses › ViewThe past perfect continuous emphasizes the duration of an action.
A. TRUE
B. FALSE
Grammar › View
________he didn’t understand everything, he was interested in the conversation.
A. However
B. Even though
C. Because
D. While
