题目

It was_________great shock to the world that two aero-planes crashed into______World Trade Center in New York o September 11th, 2001. A. a; /     B. a; the      C. the; the       D. /; the 答案：B 解析: shock指代具体事情时为可数名词，a great shock意为“一次沉重的打击”；由普通名词构成的建筑类专有名词需加冠词，故答案为B。() 4. You are not good at English,but you can't.   A. give it in   B. give in it   C. give it up   D. give up it