题目

_______________before we depart the day after tomorrow， we should have a wonderful dinner party.（ ）A. Had they arrivedB. Would they arriveC. Were they arrivingD. Were they to arrive

_______________before we depart the day after tomorrow， we should have a wonderful dinner party.（ ）

A. Had they arrived

B. Would they arrive

C. Were they arriving

D. Were they to arrive

题目解答

答案

D. Were they to arrive

解析

步骤 1：分析句子结构
句子的主句是“we should have a wonderful dinner party”，而前面的部分是条件状语从句，表示对将来情况的虚拟。
步骤 2：确定虚拟语气的时态
由于条件状语从句表示的是对将来情况的虚拟，所以从句中谓语动词应该用动词的过去式或should+动词原形或were to+动词原形。
步骤 3：分析选项
A. Had they arrived：表示对过去情况的虚拟，不符合题意。
B. Would they arrive：表示对将来情况的虚拟，但不符合虚拟语气的时态要求。
C. Were they arriving：表示正在进行的动作，不符合题意。
D. Were they to arrive：表示对将来情况的虚拟，符合虚拟语气的时态要求。
步骤 4：确定正确答案
根据以上分析，正确答案是D。