Choose the sentence which is closer in mecaning to the original:
1- I had already seen the film but I decided to watch it again last night.
.a) I watched the film last night for the first time.
.b) Last night wasn't the first time that I had seen the film.

2- The boys were playing football while it was raining.
.a) The boys were playing football untill it started to rain.
.b) The boys played football in the rain.

3- I was writing an e-mail when our computer broke down.
.a) Our computer broke down before I wrote an e-mail.
.b) I had started writing an e-mail and then our computer broke down.

4- My aunt bought me a lovely gift after she had spent the summer holiday with us.
.a) When the summer holyday was over, my aunt bought me a lovely gift.
.b) While my aunt was spending the summer holiday with us, she bought us a lovely gift.