题目内容：

    The White House is the most visited residence in the world. Tours may be scheduled through our Washington D.C. office. Due to security and scheduling procedures, there are a few things you should know before requesting a tour:

• Only groups of 10 or more may request a tour.

• Requests must be submitted with a minimum of one month’s advance notice from the date of the tour. Notice of whether your application is accepted will be given 10 days prior to（在…之前） the date requested. All tours, even after they have been confirmed, are subject to cancellation due to security interests.

• Tours are only conducted Tuesday through Saturday from 7:30 am to 11:30 am.

To process your request for a tour, please contact our Washington office at (202) 224-5521 and provide the following information:

• Date(s) requesting.

• Safety information for each person in your party, including: name as it appears on I.D. (I.D. required for ages 14 and up), date of birth, social security number, country of origin, and citizenship.

• A home address and daytime and evening phone numbers for the designated (指派的) leader of the group.

• A contact number while in DC for the designated leader of the group.

After your request is confirmed or denied, our office will contact you with further instructions.

1.This notice is to provide information about ________.

A.scheduling of Washington DC tours

B.the safety system of the White House

C.application for a tour of the White House

D.duties of a tour group leader

2.The White House is open to the public ________.

A.on weekdays only B.five days a week

C.every few days D.on weekends only

3.Application for a group tour of the White House must be submitted ________.

A.exactly on the date of application B.at least 30 days in advance

C.any day between Tuesday and Saturday D.10 days before the date of the tour