I 'm reading a new book these days,one in English.为什么不能说it's in English呢?

I'm reading a book____art I'm reading a story I 'm reading a new book these days,one in English.为什么不能说it's in English呢? 补全对话A:I 'm doing a survey about learning EnglishB:1.A:Great!What's your name?B:Lily.A:2.B:I'm learning English by remember new words.A:3.B:I remember words by reading English magazines.I like English,but I am afraid to speak in class.I think I’m reading a letter________my friend.A.of B.for C.from D./应该选谁啊? I'm reading _______ hiking.A.about B.in C.must I met many new words _____ I was reading the English novel先谢下,请详细说明下.1、I met many new words _____ I was reading the English novelA、if B、thoughC、whileD、before2、-Excuse me.Could you please tell me ____ -Sorry.I'm new hereA tom insists on ___.i'm sure it'll be good for his ___.A.reading and speaking EnglishB.looks up new words;English words study为什么? I'm reading ____ novel which tells____ interesting story.A.a;an B.a;a C.the;the D./;an I like reading .I’m a m_____ of the Reading Club.填什么? What are you like ——( ) A.I'm tall.B.I'm shy.C.I like reading.D.I have straight hair. –What are you like?–______.A.I'm tall.B.I'm shy.C.I like reading and playing chess.D.I have straight hair. I’m reading a new book these days ,_____ in English.答案是one,可是one不是表泛指的吗,这里应该是特指前面的a new book吧,为什么不用the one? （五年级下册暑假作业）将下列对话补充完整A:____ ____ ____ doing?B:I'm reading.A:____ ____ are you reading?B:____ ____ reading Dr Bethune. I`m (reading a newspaper.)[括号里提问) （ ）2.Are you speaking to your teacher?Yes,.A.I’m B.I am C.I’m not（ ）3.your classmates playing games?A.Am B.Are C.Is（ ）4.He climbing mountains.A.am not B.isn’t C.aren’t（ ）5.I a book now.A.am reading B.is reading C.reading（ i have read this book twice now i'm reading it third timei have read this book twice .now i'm reading it ( )A.a third time.B.the third time 1.Children are more able to_____a new situation than abults.A.adapt to B.change C.devote D.face KEY A 2.When reading,I often come_____this word.A.up B.into C.about D.across KEY D 3.Everyone asked me why Jack didn’t come,but it was_____ mystery to m