A:if only I could go with you
B:what a good news it i
C:how happily I was to hear that
D:what exciting to hear the new
根据课文《一封奇怪的信》内容填空。
这真是一封____ 的信,____的,____上贴着一张____,____却一个字也没有。
做功不可缺少的两个因素:① ____ ② ____ .