【文章內(nèi)容簡(jiǎn)介】
writing. 現(xiàn)在進(jìn)行時(shí)的句式 : 主語(yǔ) +be +ving+其它 . 如 : I am reading a book. :問(wèn)句 ,直接把 be提前 ,肯定回答 :Yes,主語(yǔ) +be 否定回答 : No,主語(yǔ) +be+not Are you drawing ? Yes,I am./No, I’m not. What is the boy doing? He is singing. What is he doing? He is playing basketball. Is the woman writing? No, she isn’t. She is reading a book. What’re they doing?