How embarrassed you were at that time you __your speech offen A shoud practice
问题描述：
How embarrassed you were at that time you __your speech offen A shoud practice
B should have practiced 选哪个 急
答
选择B 这是虚拟语气
形式是should have done
译为本应该,整句话的意思是你在那时是有多么尴尬吖,你本应该经常练习演讲的.