So involved with computers ____ that the leaders at the summer computer camps often had to force the

题目简介

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

题型：单选题难度：中档来源：不详

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。