He reads very ________, but speaks quite ________

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________ science is useful.

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I can't get the ________ right.

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I learn English by ________ with my friends.

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The boys ________ help laughing when they heard the funny story.

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Don't throw the bottles away. They ________ in the future.

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The text is too difficult. All of us ________ understand it.

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You ________ be careful when you cross a busy road.

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You ________ play on the road. It's too dangerous.

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After the evening party, little Tom couldn't find his parents. He didn't know what ________, so he sat on the floor, crying.

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