482. If I have enough money, I'm going to take a trip abroad. 如果我有足够的钱，我准备去国外旅行一次。 

483. Are you going to Beijing by train or by air? 你准备坐火车还是坐飞机去北京？ 

484. It's much faster to go by plane than by boat. 坐飞机要比坐船快得多。 

485. What's the quickest way to get there? 到那儿去，最快的办法是什么？ 

486. Have a pleasant trip. 祝你旅途愉快。 

487. She's leaving tomorrow, but she hasn't packed her suitcases yet. 她明天就要出发了，但还没有收拾好箱子。 

489. My sister took a fifteen-day trip to England last month. 我的姐妹上月去英格兰旅行了15天。 

490. I am going by air. I like flying. 我乘飞机去，我喜欢飞行。 491. I was very tired after taking an eight-hour flight. 坐了8小时飞机后，我非常疲惫。 

492. How many passengers are there on the bus? 公共汽车上有多少乘客？ 

493. Her father died in an airplane crash. 她父亲在一次飞机事故中丧生。 

494. Would you like to go for a walk after dinner? 你愿意晚饭后去散步吗？ 

495. Kate will leave for New York tomorrow. We will see her off in the airport. 凯特明天去纽约，我们去机场给她送行。