Exercise 1 - Understanding meaning
means someone who knows a lot about a specific area of knowledge.
can be used as a noun or an adjective. In this exercise,
is used as a noun.
Professor Jacobs is a well-known
on using the internet to teach English. All the other teachers go to him for advice.
I can answer any simple questions that you have, but you will need to go to an
to answer the more difficult questions.
Which answers are closest to this meaning of
Click on 3 correct answers.
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