It was _____ great shock to the world that two planes crashed into _____ World Trade Center in New York on September 11th, 2001.

       A．a; /         B．a; the     C．the; the  D．/; the

It was ________ great shock to the world that two planes crashed into ________ World Trade Center in New York on September 11, 2001.

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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

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

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