一道英语选择题,请说明选项、考点和原因,31.Peter has gone to the United States,but he ________ back in three days.A.comes B.came C.will come D.has com
问题描述：
一道英语选择题,请说明选项、考点和原因,
31.Peter has gone to the United States,but he ________ back in three days.
A.comes B.came C.will come D.has com
答