阅读下面短文，理解大意，从题中所给的A、B、C、D四个选项中选出一个最佳答案。
Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight ____ before setting down. High desert winds had ____ the airport to close all but one runway. He said that we would be ____ the city for a few minutes waiting to ____. We were also told to remain in our seats meanwhile with our seat belts fastened ____ there might be a few bumps(颠簸). Well, that few minutes turned into about forty-five minutes, including a ride that would make a roller coaster(过山车) ____ by comparison. The movement was so fierce that several passengers felt ____ and had to use airsickness bags. As you might guess, that's not a good thing to have happen in a(n) ____ space because it only ____ to increase the discomfort of the situation.
About twenty minutes into the adventure, the entire airplane became very ____. There was now a sense of anxiety and fear that could be ____ noticed. Every passenger simply held on for dear life... except one. A ____ was having a good time! With each bump of the ____， he would let out a giggle(咯咯的笑) of delight. As I observed this, I ____ that he didn’t know he was supposed to be afraid and worried about his ____. He neither thought about the past nor about the future. Those are what we grownups have learned from ____ . He was ____ the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and ____ back into my seat, pretending I was ____ on a roller coaster. I smiled for the rest of the flight. I even ____ to giggle once or twice, much to the chagrin(懊恼) of the man sitting next to me holding the airsickness bag.

A．mistake B．delay C．change D．wind

A．forced B．warned C．swept D．reminded

A．watching B．visiting C．circling D．crossing

A．arrive B．enter C．stop D．land

A．if B．though C．because D．while

A．light B．pale C．easy D．quick

A．sick B．nervous C．angry D．afraid

A．empty B．narrow C．secret D．open

A．happens B．continues C．fails D．serves

A．quiet B．hot C．dirty D．crowded

A．partly B．gradually C．shortly D．clearly

A．pilot B．baby C．guard D．man

A．seats B．passengers C．flight D．airplane

A．realized B．hoped C．agreed D．insisted

A．health B．safety C．joy D．future

A．teachers B．books C．experience D．practice

A．learning B．taking C．missing D．enjoying

A．sat B．lay C．went D．rode

A．nearly B．finally C．really D．suddenly

A．attempted B．managed C．wanted D．decided