We assume conditions exist for normal high frequency oscillations . (使用occur的适当语态和时态)?
举一反三
- We (remember) that the proper conditions do not necessarily mean that life actually does exist on a planet.
- 通知通常使用什么时态和语态(多选,只选2种) A: 一般将来时 B: 一般过去时 C: 主动语态 D: 被动语态
- 一个人在谈话时过多地使用什么语态,表明该人敢想敢为,不怕困难,甚至不怕冒险。() A: 过去时态 B: 现在时态 C: 被动语态 D: 主动语态
- 非谓语动词是没有时态和语态的
- We [input=type:blank,size:4][/input] that the proper conditions do not necessarily mean that life actually does exist on a planet.