問題詳情：
*東城區示範校2011屆高三綜合練習（二）
So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports.
A. has the children become B. did the children become
C. has become the children D. became the children
【回答】
B
知識點：倒裝與省略
題型：選擇題
