which or that?

It`s good racounters .......... I like talking to.

that

She`s one of the kindest people .......... I know.

that

Something .......... I enjoy is watching chat shows on TV.

that

The time .......... I spent without internet access was terribly hard.

that

These walls are all .......... remain of the city.

that

I had to take an urgent call, .......... was why I walked out of the restaurant.

which

I`m going on a communications course, .......... should be very interesting.

which

My mobile phone, .......... I lost on the train last week, had all my contacts on it.

which

My relationship with Martha, .......... started only a month ago, is already over.

which

The debate, .......... I only joined in towards the end, was very stimulating.

which

The final decision, .......... not everybody is going to like, will be announced at the next meeting.

which