________ one of your cousins happy at school?
The boy _______ a blue jacket can sing songs _______ English.
书写时占三格的字母是______.
“中华人民共和国”的缩略词是______.
下列字母含有相同元音音素的一组是 ______.
The underlined part in the word “yellow ”is pronounced(发音) as ______.