At first, it seemed that everything went well, but all of         sudden, the ship hit       

iceberg.

At first, it seemed that everything went well, but all of ________ sudden, the ship hit ________ iceberg．

1. A.
   a; an
2. B.
   a; the
3. C.
   the; the
4. D.
   /; an

At first, it seemed that everything went well, but all of         sudden, the ship hit _________ iceberg．

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

At first, it seemed that everything went well, but all of         sudden, the ship hit       

iceberg.

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

At first, it seemed that everything went well, but all of ________ sudden, the ship hit ________ iceberg.

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

At first, it seemed that everything went well, but all of         sudden, the ship hit       
iceberg.

 At first, it seemed that everything went well, but all of         sudden, the ship hit _________ iceberg．

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