Xixi Luo
Member
- Joined
- Apr 18, 2020
- Member Type
- Student or Learner
- Native Language
- Chinese
- Home Country
- China
- Current Location
- China
Think about light. If you look at Huygens, light is a wave as confirmed by double-slit experiments. But then along comes Albert Einstein and discovers that light behaves like particles too. ---extracted from The Big Bang Theory.
Why do the verbs marked use the simple present tense instead of the simple past tense? I think they did happen in the past.
Why do the verbs marked use the simple present tense instead of the simple past tense? I think they did happen in the past.