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в каком времени предложения обязаны быть?

Present perfect

3. Tom has blown out the light. +
Tom hasn't blown out the light. -
Has Tom blown out the light?
4. The cat has drunk its milk. +
The cat hasn't drunk its milk. -
Has the cat drunk its milk?
5.The tree has fallen across the road. +
The tree hasn't fallen across the road. -
Has the tree fallen across the road?
6. John has given his bicycle to his brother. +
John hasn't given his bicycle to his brother. -
Has John given his bicycle to his brother?
7.You have мейд a mistake.+
You haven't мейд a mistake. -
Have you мейд a mistake?
8. We have eaten our dinner. +
We haven't eaten our dinner. -
Have we eaten our dinner?
9. The train has just gone. +
The train hasn't gone yet. -
Has the train just gone? 
10. I have just told the answer. +
I haven't told the answer yet. -
Have I just told the answer?