查人人中国名人网pk10六码走势技巧:讲一讲这个题为什么选D？~~~~~~~~~~
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/06 00:20:58
So involved with their computers _________ that leaders at summer computer camps often have to force them to break for sports and games.
〔 A 〕 became the children 〔 B 〕 become the children
〔 C 〕 had the children become 〔 D 〕 do the children become
讲一讲这个题为什么选D？
〔 A 〕 became the children 〔 B 〕 become the children
〔 C 〕 had the children become 〔 D 〕 do the children become
讲一讲这个题为什么选D？
so开头倒装,后面have to说明是现在时，前面用do