I have a English book.为什么不可以在I have后加an?

make a boo boo Impeek-a-boo I have a question about r_____ English I have a new english book? I want have a English name I have a Chinese--English d i have a hard time learning english同义句i have（）time （）english I have ( )friend. A.English B.an English C.a English D.an England Peek-a-boo什么意思 EVERYBODY LOVES PEEK-A-BOO I have good english well,I think english isI have good english well,I think english is a sister,teach me,hee hee 谁会翻译 I will learn English 和I will have a learn English 哪个句子正确 I have never learned English before.T__,I dont know a word of English. I have never learned English before. T__,I dont know a word of English. 英语翻译i have a pen pal from English I have a lot of probiems in learning english. I have _______ English book.a an the i have been learning English a lot对不?