问题补充:
----Why didn’t you tell me about the meeting?
----I tell you the day before yesterday. You just forget it.
A. do
B. did
C. had to
D. must
答案:
A. do
(答案→)B. did
C. had to
D. must
解析:考查强调语气。句意:你为什么不告诉我这个会议的事情?——我前天告诉你了。只是你忘了。结合语境可知下文描述的是过去动作,用过去时态。陈述句中实意动词前加助动词其强调作用。had to意思是不得不,故选B。