下面对于“挫折也是财富”的理解正确的是（   ） 

    My family and I were on our way to Pennsylvania and it was the middle of a snowstorm. We were almost there when we got stuck in a 1 traffic jam. Cars stretched (延伸)ahead of us and behind us as 2 as we could see. We sat in the same 3 without moving for seven hours. We 4periodically to see if the5 ahead of us were moving, which they had never been6there was a large 18-wheeler truck in front of us, my mom had to 7 the door to see around the 18-wheeler to get a 8 of the traffic jam in front of us. All we could do was sit and 9.At no time did any of us fall asleep or stop10 attention, because we were always checking up on the traffic. We sat for hours and heard11 about the cause of the traffic jam from the12and the only person we talked to was a truck driver13 us, who didn't know anything about it either.14after seven hours, the truck in front of us began moving slowly and we were happy to get moving, but when we15in front of the truck, there were absolutely NO cars to be seen, and NONE behind us16 one 18-wheeler. The only other vehicle besides those was the one of the trucker that had been next to us the 17 time. There were no signs of a traffic jam the entire 18 of our trip. It was as though the cars had all 19To this day we have no 20 as to how this could have happened.

①我们正在劳动，突然梨树丛中________出了一群哈尼小姑娘。

②瑶族老人立即走到她们面前，深深弯下腰去，行了个大礼，吓得小姑娘们像小雀似的________开了。

③从那以后，常常趁砍柴、拾茵子、找草药的机会来________这小茅屋。