题目内容

Telecommunications technologies have____into everyday life so deeply that modern society could not function without them.

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For a long time the US was regarded as a melting pot. This meant that all the ____.elements would be melted down into 100% American.

Out-of-town tourists____about a third of the amazing annual figure of six million visitors.

The discovery of the new drug is of great____for people suffering from heart problems.

Having expensive equipment doesn't actually____that you can play golf, and in order to play it well, you might have to take a few lessons.

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