问题
选择题
Having a glass of water first thing in the morning helps rid your body of poisonous substances that ________ overnight.
A．were stored
B．had been stored
C．are being stored
D．have been stored
答案
答案：D
题目分析： 句意：早晨第一件事喝一杯水帮助你排除身体里面储存了整晚的毒素。因为毒素是从昨晚一直到现在一直被储存，所以用现在完成时的被动，选D。