题目内容：

The Harvard Student-led Walking Tour

We welcome our neighbors to stop by the Harvard University Events & Information Centre, located in the Holyoke Centre Arcade at 1350 Massachusetts Avenue in the heart of Harvard Square in Cambridge.

Let a student take you and your family, school, or organization on an engaging, hour-long free historical tour of the Harvard campus. The tours leave from the Events & Information Centre. Not only will you discover the location of fascinating exhibition and programmers on campus, you will also see Harvard’s rich sampling of American history and architecture from the colonial period to the present.

Schedule of Tours

Tours leave the Events & Information Centre at 10 a.m. and 2 p.m. Monday through Friday, and at 2 p.m. on Saturday through the academic year (February 4 through May 2; September 23 through December 16).Summer tours (June 24 through August 15)are offered at 10 a.m.,11:15 a.m., 2 p.m., and 3:15 p.m. Monday through Saturday. Reservations for special tours of 20 or more people may be made by calling the Events & Information Centre at (617)495-1573 or emailing icenter@ camail.Harvard.edu.

NOTE：Prospective(未来的) students may take tours originating at the Harvard Admission Office, located at Byerly Hall on 8 Garden Street in Cambridge. From April through August, the Admissions staff conducts an information session at l0 a.m., followed by an 11 a.m. tour. Monday through Friday. For more information on tours for prospective students, please call at(617)495-1551.

Harvard University Events & Information Centre.

1.The above ad is mainly intended for ____________.

A. foreign visitors    B. high school students

C. teachers    D. Harvard University’s students

2.How many summer tours are offered every week?

A. 4.    B. 6.

C. 20.    D. 24.

3.A student who wants more information on tours may ____________.

A. call (617)495-1573    B. call (617)495-1551

C. email icenter@ camail.Harvard.edu    D. go to the Events & Information Centre