一、将下列句子改为复数形式: 1.There is a knife in the box. There _____ _____ ______ in the box. 2.She's a woman doctor. They're ______ ______. 3.Our teacher often tells us a story. Our ______ often ______...
一、1.are, some, knives 2.women doctors 3.teachers, tell, stories 4.sheep, are 5.pieces, bread 二、1.doesn't do any 2.don't have to 3.Don't tell 4.no,or 5.don't think, is 三、1.Is there any 2.Does, have 3.D...