Englishfor English speakers
undertake
Verb
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If you undertake something, you take responsibility for doing it and you start to do it.
He is in charge of this project and has undertaken this work largely single-handed since July.
After a common two years, some students undertake industrial or professional placement in their third year.
Britain has apparently undertaken to review its own aid to Vietnam.
the
Determiner
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Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
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Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
task
Noun
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A task is a specific piece of work, often unpleasant.
Come here, young man. I have a task for you to do.
Telecommunications systems for hotels now perform many more tasks than just allowing people to make telephone calls.
When I was young, I had the task of milking the cows.
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If you take someone to task, you criticise them strongly.
Father took her to task for taking the car without asking.
task
Verb
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If you task someone with doing something, you give them that job.