句型转换-J5\9r9T8?(N*z+m9H'Q,j4j
They are in Grade Two. （改成否定句）-J5\9r9T8?(N*z+m9H'Q,j4j
8A1`4D'm*D'b9X6T9Zin Grade Two.-J5\9r9T8?(N*z+m9H'Q,j4j