ls he reading a book?yes,后面是什么

ls he reading a book?yes,后面是什么 ls this a book Yes,this is.谁会修改? He is reading a book. He is reading a book ( )Japanese histoy He is reading a book （ ）English. He is reading a book 变成一般将来时 He is taking and reading a book. Yes,she likes reading book .的问句是什么? he is reading book? 他在看书译：he reading a book,he reading the book ,哪个对,why? He is reading a book.(对划线部分提问）reading a book划得线. He is a writer reading book .句中的reading book 句子成分分析