____ bikes are red. ____ are blue.
26个字母中能够单独构成单词的两个字母是________. A. A,I B. I,N C. A.L D. A,N
下列各项中含有 / i: / 发音的一项是________.
下面属于元音字母的是________.
与r相邻的字母是________.
--- If I_______ one million dollars, I would give it to medical research. ---If I _______ you, I would give it to charity.