I am writing letters now.这句话里能不能把now放在I的前面?

I am writing letters to my friends!如题 I am writing letters to my friends!这句话有语病没有! I am writing letters now.这句话里能不能把now放在I的前面? 区别两组句子○ I am writing letters now.○ I shall be writing letters all day tomorrow.● I'll come to your house tomorrow.● I'll be coming to your house tomorrow. l am writing letters now.用的是什么时态? I am writing中am的作用 I am writing a letter是什么意思 I am not writing a letter.改错、 I am writing a letter.提问： sometimes I writing letters to my friend还是sometimes I write letters to my friend哪个是对的? I enjoy________ letters to my friends.(A write B writes C writing D to write ) I be good at writing 还是 I am good at writing i am writing to suggest that这个表达对吗 I am not good at writing.改为同义句 Am I writing a letter?的反义疑问句是什么? I am writing a letter you in my school为什么 writing,my,i,a,father,letter,to,am 排句 I am busy writing a novel.是什么句型 I am writing a report now.改为一般疑问句