问题补充:
See the flag on top of the building ? That was we did this morning .
A when B. which C. where D. what
答案:
解析:D表语从句中缺did的宾语。
时间:2021-04-11 23:13:53
See the flag on top of the building ? That was we did this morning .
A when B. which C. where D. what
解析:D表语从句中缺did的宾语。