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Which one is not correct to fill in the blank?

Hand gestures are a type of ___________ which makes people listen to you.

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Video conferencing is a technology that allows ______ communication.

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Many people think ______ will replace human translators in the future.

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I think there will be no language ______ in the future. People will speak a common language.

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He texted me that he would come to the office _____________ twenty minutes.

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We made a(n) ______ to discuss our project.

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This webcam is focusing _____________ my forehead.

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If ______ becomes popular in the future, it will save communicators a lot of travelling time and money.