Potential subjects should be informed of

天天题库2019-12-17 16

问题 Potential subjects should be informed of the research and __________an opportunity to decide if they want to participate.

选项 A．gaveB．givingC．giveD．be given

答案D

解析考查动词的语态。后半句的主语是代词they，谓语动词是9ive，根据句意应是“他们被提供机会决定是否要参与研究”。故用被动语态。

转载请注明原文地址:https://ti.zuoweng.com/ti/oCSlKKKQ

相关试题推荐

随机试题

Potentialsubjectsshouldbeinformedof