[ Present Perfect Simple and Continuous ]
They ___ (know) each other for ten years!
A. have been knowing
B. have been knowed
C. have knowed
D. have known
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Modal Verbs of Deduction and SpeculationPresent Perfect and Past SimpleAdjective or AdverbTenses and VerbsComparisonsAdverbs by TypeFuture Continuous TensePresent Simple VS ContinuousSentences vs Run-OnsPast Continues TenseOther quiz:
TOEFL Grammar › ViewThe box ___________ opened only with a special screwdriver.
A. it will be
B. is going to
C. can be
D. it can be
Social Media Vocabulary › View
My friend’s candle-making business increased its _________ dramatically this year, almost doubling its profits.
A. prevalent
B. superficial
C. revenue
D. susceptible
Grammar › ViewSam and David are studying in the library, …?
A. isn’t he
B. aren’t they
C. doesn’t he
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______, I have to put it away and focus my attention on study this week.
A. However the book is amusing
B. No matter amusing the book is
C. However amusing the book is
D. No matter how the book is amusing