...ride it. I try 3 times, but still can't do it. When I 4 my...
When I 4 my bike, I find that it is very "naughty"(调皮的). Sometimes it goes left, 5 it goes right. I 6 never control(控制) it. This Saturday, I go outside to ride again, but it 7 still hard for me. I fall down many times. My brother and ...