The primary purpose of paragraph 1 is to _________.
A.summarize past research and introduce a new study
B.describe a historical period
C.define a term and illustrate it with an example
D.emphasize the advantages of one theory over another

According to the passage, Philadelphia and Boston are similar to New York City in _________.
A.size of population
B.availability of rail transportation
C.site
D.age

The word "it" refers to _________.
A.hinterland
B.account
C.connection
D.primacy

A.mutually
B.apologize
C.permission
D.reaction

A.survival
B.industry
C.endangered
D.commercial

She gave in her notice. She planned to start her new job in January
A.She gave in her notice, plan to start her new job in January.
B.She gave in her notice with a view to starting her new job in January.
C.Her notice was given in with an aim to start her new job in January.
D.Her notice was given in in order for her to start her new job in January.

We arrived at the airport. We realized our passports were still at home.
A.It was until we arrived at the airport that we realize our passports were still at home.
B.We arrived at the airport and realized that our passports are still at home.
C.Not until had we arrived at the airport, we realized our passports were still at home.
D.Not until we arrived at the airport, did we realize that our passports were still at home.

I did not read his book. I did not understand what the lecturer was saying .
A.What the lecturer wrote and said was too difficult for me to understand.
B.I found it very difficult to understand what the lecturer said in his book.
C.I would have understood what the lecturer was saying if I had read his book.
D.The lecturer's book which I had not read was difficult to understand.

A.geographical
B.Aborigine
C.expedition
D.Australian

The composer Verdi has written the opera Aida to celebrate the opening of the Suez Canal, but the opera was not performed until 1871.
A.has written
B.to celebrate
C.the opening of
D.was not performed