1Thisis的精选

问题详情：用所给词的正确形式填空。1.Thisis________(I)pen.2.Isit________(you)book?3.________(my)amHeXu.4.Howare________(your)?5.Excuse________(I).What'syourname?【回答】1.my   2.your  3.I   4.yo...