A:Oh, it's already so late?
B:Thank you for coming.
C:Oh, sorry you could't come.
D:I really had a happy time.
我国古代的最高学府太学设在( )
发现 发明
①教他们学自己____的拼音字母。
②我____喜鹊阿姨的鸟窝里有六只小喜鹊。