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