【正文】
Self CheckWho39。sWho39。sthesethey areExercise一、根據(jù)句意及首字母提示完成單詞。 and I____________sisters. 2.—Is this your brother? —____________ ,it is. ,he is. ,it is. is my that____________my aunt. 4.—Are those his friends? —____________ ,those. ,they aren’t. ,those aren’t a pen and there____________my books. 。is