1) He was unaware that I was present

他不知道我在场。
2) He was unaware of my presence/that I was present.

他不知道我在场.
3) I knew he was shamming.

我知道他在装腔。
4) I know he is telling a lie.

我知道他在说谎。
5) I was conscious of her presence.

我知道她在场。
参考词条