Question

【题目】You must read the i carefully before you use this new cell phone.

Answer 1

【答案】instruction
【解析】句意：你在使用这部新手机前必须认真阅读说明。根据从句 before you use this new cell phone.结合首字母提示可知此处指“说明书”instruction，由常识可知一部手机只有一份说明书，用单数，所以答案是instruction 。