问答题

TASK 1
Directions: After reading the following passage, you will find five questions or unfinished statements, numbered from 36 to 40. For each question or statement there are four choices marked A, B, C, and D. You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center．

A few ways Greyhound can make your next trip even easier． Tickets by mail． Avoid lining up altogether, but purchasing your tickets in advance, and having them delivered tight to your mailbox. Just call Greyhound at least ten days before your departure. (1-800-231-2222) Prepaid tickets． It’s easy to purchase a ticket for a friend or family member no matter how many details on how to buy a prepaid ticket． Ticketing requirement． Greyhound now requires that all tickets have travel dates fixed at the time of purchase. Children under two years of age travel free with an adult who has a ticket. If your destination(目的地)is to Canada or Mexico． Passengers travelling to Canada or Mexico must have the proper travel documents. US, Canadian or Mexican citizens should have birth certificate, passport or naturalization(入籍)paper. If you are not a citizen of the US, Canada or Mexico, a passport is required. In certain cases a visa may be required as well. These documents will be necessary and may be checked at, or before, boarding a bus departing for Canada or Mexico.

When people are travelling to Canada or Mexico, a passport is a must for ______．