从A、B、C、D四个选项中，选出与所给句子划线部分意义相同或相近并能代替的那一项.

The main thing is not to worry.

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Mr. Wang is a good teacher. He has ________ rich ________ in teaching children.

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The lecture is a little difficult for you. Please ________ some key points in your notebooks.

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At the meeting, they said nothing but ________ quiet.

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We can get to his home in only ten minutes. He lives in a ________ village.

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We have decided ________ a picnic in the bush this Sunday.

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Bell ________ the telephone which is still being used today.

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The children didn't come back ________ ten o'clock last night, I was very worried.

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I thought I couldn't find the lost book again. But I got it______ on the shelf yesterday.

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You are too thin. You should eat ________ . food.

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