1. The Brown family goes to Switzerland every winter. They started to do this 4 years ago.

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2. My brother ate frogs’ legs. He ate frogs’ legs three times.

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3. Scientists are concerned with the world’s rain forests. This concern started nany years ago.

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4. James knows how to repair a computer. He learned how to do it a long time ago.

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5. Maria was excited about space exploration when she was young. She is still excitied about it.

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