[ Perfect Progressive Tenses ]
I ______ (read) this book for three hours by the time you arrive.
A. am reading
B. have been reading
C. will have been reading

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Passive SentencesComparatives - SuperlativeTenses and Time MarkersAuxiliary WordsComparatives, Superlatives & EquativesArticles and DeterminersAdverbial Clauses of Manner and ResultActive & Passive VoicePresent Tense vs Present ContinuousModal Verbs of PermissionOther quiz:
Grammar › ViewJanith and Noemi __________ to the cinema every weekend!
A. Do
B. Goes
C. Went
D. Go
Will or Going to › View
Look the sky, it’s so dark! I’m sure ______.
A. It’s going to rain
B. It’ll rain