题目:A paragraph starting with a topic sentence can be represented by a/an( ).
upside-down triangle
regular triangle
rectangle
diamond
喵查答案:["upside-down triangle"] ……继续阅读 »
题目:Determining the main ideaThe main idea of the story is that______.( )
people living on Pemberton Street were conscious that they should make their block clean
people liked to ha……继续阅读 »