Two weeks before Christmas one year, I went to London with my 1 . I shall never forget the day. The streets were full of people. The shop windows were very bright. My mother held my hand and
―Did you hear the news this morning? ―Oh, yes, ________ was announced on the radio has caused great excitement among pupils. A. that B. what C. something
，则k=__________．
的范围，即可得出k的值．
，