Question

So lost in 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

Answer 1

D

考查倒装句。当so加形容词放句首时后面的句子要采用部分倒装，即提前助动词或者情态动词。根据后面的often可知，该句采用的是一般现在时。
句意为，孩子们变得如此沉迷于电脑，以致于夏令营的领导经常不得不强迫他们去运动或者游戏来休息。