The research has focused ______ the relationship between a teenager’s sleep and -组卷网

题型：单项选择难度：0.65 引用次数：72 题号：13984442

The research has focused ______ the relationship between a teenager’s sleep and health.

A．on

B．for

C．to

D．with

21-22高一上·辽宁抚顺·开学考试查看更多[1]

更新时间：2021-09-20 14:43:24 |

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【知识点】 focus on 介词与其它词类的搭配解读

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