题目

计算：－(π－2017)0＋|－2|＋2sin60°.   答案：解：原式＝2－1＋2－＋2× ＝2－1＋2－＋ ＝3.  ----Why did you leave without a word oif warning to John?   ----But what           otherwise?He never listens to me. A.must I have done          B.should I do C.could I have done     D.would I do