So involved with puters that the leaders at the summer puter camps often had to force them to break for sports.
A. has the children bee
B. did the children bee
C. has bee the children
D. became the children
网友回答
A. has the children bee
(答案→)B. did the children bee
C. has bee the children
D. became the children
解析：这题考查倒装句的用法：so+adj+that句型，so+adj置于句首时，句子要部分倒装，即助动词情态动词be动词放在主语前，从that从句的过去时判断主句用过去时。选B。