Question

Exercitiul 4 va rog multumesc

Answer 1

1. i) Sentence a) shows the starting point of the action and sentence b) shows the duration of the action.
2. ii) It's OK is he arrives earlier in case b).
3. iii) b) is wrong, because we do not use "will" after "till" when speaking about the future.
4. iv) He is in London in case b).