By the time you finish reading this book, you ____________ ...

★ Future Time and Tenses

By the time you finish reading this book, you ____________ a lot about history.

A. will have learnt

B. are learning

C. going to learn

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A: I want to go home, it’s late. B: I ______________ you a taxi

A. will request

B. am requesting

C. am going to request