Task 2: Find the words or phrases in the text which means these things.
1.及时______________ 2. 确保_____________
3.拥挤的_________________ 4.高峰期 ____________
5. 郊区_____________ 6.看到 ___________________
7.可能性的选择______________ 8. 正在建设中___________________
9.单程旅行___________________ 10. 值得做~~~________________
