Which of the following includes symnonyms of the word STIMULATE?

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The whole valley _____ when the river was dammed.

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She was _____ having diabetes.

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The year 2000 can be considered as a milestone for the hearing-impaired as the Nippon Foundation launched a disability support project.

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I hesitated to choose either of the suits to wear to the interview.

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I tried to conceal my surprise when she told me her age.

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When she was six, she was abandoned by her family.

Choose the most suitable word to fill in the gap:

New toll roads could help _____ congestion (tắc nghẽn giao thông) on other routes.

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Thousands of people made plegdes (= promised to give money) to the charity champaign.