The correct symbol of “ therefore” is________.
书写占三格的字母是_____________
选择下列四个中划线部分读音与其他三个不同的单词：
The underlined part in the word “escaped” is pronounced as_____.
Math is a little difficult, but I still like it very much.
找出下列各组单词中划线部分发音不同于其他三个的词
