Please choose the correct ending to complete the given sentence: Doing motocross: On a giant dome of dirt there are many bikers at the top and a very big crowd watching. they

Ending1: start to take off into the air doing flips and really cool professional tricks. Ending2: begin peddling their bikes as they do a scissor' sh' on the dirt as a sign of victory. Ending3: compete at full speed to get over the rudders and have some fun. Ending4: race and kick the sand trying to get it into people circle like corners to go after a beetle.

Answer format: ending1/ending2/ending3/ending4