,栏目导航,it,It,it,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,It,it,it,it,C,A,B,A,C,C,B,C,C,It is strange for her to be late for school.,It appears that he knows everything. 或He seems to know everything.,或Perhaps he knows everything.,To sit in the Sun is pleasant.,How far is it from here to the school?,It takes a long time to build such a house.,to keep,are,crowded,and,immediately,falling,a,In,breathe,dangerous,
