Nobody can hear you ______you speak in a louder voice.

Nobody can hear you ______you speak in a louder voice.

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I find ____ necessary to learn about the customs of a country before you go ther

I find ____ necessary to learn about the customs of a country before you go there.

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There is ___ juice in the fridge. I must go to the supermarket at once to buy so

There is ___ juice in the fridge. I must go to the supermarket at once to buy some.

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In China, you ________ stick your chopsticks into the food.

In China, you ________ stick your chopsticks into the food.

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已知函数 f(x) =|x﹣ 4|+|x+3|.(1) 求不等式 f(x) ≥12 的解集;

已知函数 f(x) =|x﹣ 4|+|x+3|.(1) 求不等式 f(x) ≥12 的解集;

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