277.He got his first book published.It turned out to be a best-seller.
When was _______?
_______ was in 2000 when he was still in college.
A.that;This
B.this;It
C.it;This
D.that;It
278.The cruelty of the terrorists towards foreigners and ________ of the terrorists toward London last month filled everyone with honor.
A.those
B.one
C.that
D.it
277.答案是D;第一空that指代上文中提到的事情；第二空it指代上文的that，以避免重复。
278.答案是C;that指代cruelty。
