Thanks to the Internet, different kinds of information _______ in a short time.
A:can be learned
B:has been learned
C:can learn
D:has learned
变黄的杨树叶能够从树枝上脱落下来,这说明( )
读课文《快乐的节日》,你能用本文中的词语填一填吗?
我们像小鸟一样,等身上____的长____。