题目

题型：不详难度：来源：

.People in developed countries are supposed ______ more healthy food before than what they have today.

A．to be had

B．to have

C．had

D．to have had

答案

D

解析

试题分析：考查时态，固定词组be supposed to do sth意思“被期望做什么事情”，句子有个时间状语before，意思“在…以前”，所以用现在完成时，表示动作对现在造成的影响，被期望已经有健康食物，句子意思“以前发展国家的人们被期望有健康的食物而不是今天所有的”，
点评：做时态题时，要注意时间状语，句子People in developed countries…，in developed countries做people的后置定语， what they have today.是 What引导的从句。