现在进行时构成 be+doing — 英语选择题

看提示，选出三句都正确的一项。I（read）；Amy（draw）；Tom and Jack（play）。A. I is reading. Amy are drawing. Tom and Jack is playing. B. I am reading. Amy is drawing. Tom and Jack are playing. C. I am read. Amy is drawing. Tom and Jack are playing. D. I am reading. Amy is draw. Tom and Jack are play.