首页 › 答案 › 题库 › 慕课 › 未分类

The by-phrase introducing the agent of the action is necessary in a passive sentence.

The by-phrase introducing the agent of the action is necessary in a passive sentence.
A.正确
B.错误
正确答案：错误

标签：英语语法

上一条：Some phrasal verbs made up of intransitive verbs are transitive and have passive forms.

下一条：Not all the active sentences can be made passive.