问题
选择题
See the flag on top of the building ? That was ___ we did this morning .
A when B. which C. where D. what
答案
答案：D
D表语从句中缺did的宾语。
搜题请搜索小程序“爱下问搜题”
See the flag on top of the building ? That was ___ we did this morning .
A when B. which C. where D. what
答案：D
D表语从句中缺did的宾语。