Boris Tatarenko
Senior Member
- Joined
- May 6, 2013
- Member Type
- Student or Learner
- Native Language
- Russian
- Home Country
- Russian Federation
- Current Location
- Russian Federation
Modern astronomers are much better equipped. But some of the questions that they ask themselves (not change), like, for example, whether there has ever been life on Mars.
The answer is "haven't changed", but I think "don't change" is also correct. Am I right?
The answer is "haven't changed", but I think "don't change" is also correct. Am I right?
Last edited: