1.   I pressed the gas pedal, and slowly the wheels began to churn.

2.   Then Tony pulled the lever and the wheel began to slow down.

3.   There is also a slippage control which automatically cuts power if the wheels begin to spin under harsh acceleration.

4.   The wheel began to revolve.

5.   The wheels began to slowly churn.

6.   The front wheels began to slip, and then the rear wheels hit the ice patch and they too began to spin.

7.   Then they reached the top, the tractor could go no higher, the wheels began to sink.

8.   But almost as soon as the official, US Appeals Court Judge Bruce Selya, got home, the wheels began to turn.