题目内容
3. They are connected to cables under the street.
People them to cables under the street.
4. It comes into our flat through thin wires.
It into our flat through thin wires.
3. connect 4. flows
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题目内容
3. They are connected to cables under the street.
People them to cables under the street.
4. It comes into our flat through thin wires.
It into our flat through thin wires.
3. connect 4. flows