你记得是谁发明了电视吗？

Can you remember who invented TV?

充气轮胎是谁发明的？

Who invented the pneumatic tire?

嗯…那是谁发明了你呢？

Mensch: hmm… who invented you?

我想知道是谁发明了火药。

What I want to know is who invented gun powder.

请告诉我电视机是谁发明的。

Please tell me who invented the television set.

你知道雷达是谁发明的吗?。

Do you know who invented radar?

你知道是谁发明了电视机吗？

Do you know who invented TV?

我们不知道轮子是谁发明的。

We do not know who inventive the wheel.

你知道是谁发明了中国象棋吗？

Do you know who invented Chinese chess?

目前还没法确定是谁发明了电视。

It is still uncertain who invented TV.