Choose the sentence which has the closest meaning to the original one.

She had not slept for two days and therefore she wasn’t able to concentrate.

It was the second time she had been in an international conference about further education.

She has only been in an international conference about further education once before.

She has never been to any international conference about further education before.

She has already got used to being in an international conference about further education.

Before asking his parents for advice, Lam didn't want to go to a university.

Without asking for anyone's advice, Lam's parents forced him to go to a vocational school.

Lam decided to go to a vocational school after he had asked his parents for advice.

Lam decided to go to a vocational school despite his parents' objection.

I know more education options because I have visited the education fair.

I know more education options before I visited the education job fair.

Before visiting the education fair, I have visited many other job fairs.

Although I have visited the education fair, I already know more about education options.

Having gone out to play his mother's permission, he asked his mother’s permission.

Asking his mother's permission, he had gone out to play.

Asking his mother's permission, he went out to play.

Having asked his mother's permission, he went out to play.

It's the first time Lisa has ever studied abroad.

It's the last time since Lisa studied abroad.

It was the first time Lisa had ever studied abroad.

Never before Lisa has studied abroad.

My brother made a wrong choice in his higher education because he didn't ask anyone for advice.

Even though my brother asked everyone for advice, he still made a wrong decision in his higher education.

My brother made a wrong choice in his higher education, so he didn't ask anyone for advice.

My brother didn't ask anyone for advice because he made a wrong choice in his higher education.

I haven't never received a letter from my friend since February.

I last received a letter from my friend in February.

It was in February since I first received a letter from my friend.

My friend last wrote a letter to me when in February.