Relacionar Columnas Talking About FunctionsVersión en línea Matching por Logos Sprachinstitut 1 The airflow is regulated by the valve. 2 The function of the switch is to turn the machine on and off. 3 The purpose of the backup file is to keep our data safe. 4 The purpose of the wheel is to steer the truck. 5 The bridge is supported by steel pylons. 6 The vehicle is powered by the engine. 7 The shelf is bolted to the wall with screws. The wheel steers the truck. The switch turns the machine on and off. The valve regulates the airflow. The backup file keeps our data safe. The engine powers the vehicle. Screws bolt the shelf to the wall. Steel pylons support the bridge.
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