Ответы и объяснения

How does my friend translate English texts?
 Who translates English texts very quickly?  

 When did I enter the medical college?
 What did I do at the age of 17?  

 Where does she usually spend her holidays?
 What does she usually do in the country?  

 Who will go for a walk in the evening?
 When will they go for a walk?  

When do our lessons usually begin?