早教吧 育儿知识 作业答案 考试题库 百科 知识分享

下文的"iscomposedof"为什么错了Elephants'tusks,orverylargeteethgrowingoneoneithersideoftheirmouths,iscomposedofavaluablematerialcalledivory.请详细说明原因

题目详情
下文的"is composed of"为什么错了
Elephants' tusks,or very large teeth growing one on either side oftheir mouths,is composed of a valuable material called ivory.
请详细说明原因
▼优质解答
答案和解析
Elephants' tusks 是主语所以改用复数 are composed of
看了 下文的"iscomposed...的网友还看了以下: