1£®This is the school that /which we visited yesterday.

2£®This is the school where/in which my father works.

3£®The boy whose parents are dead was brought up by his grandfather.

4£®Can you see the house of which the window faces the south?

5£®This is the very thing that I am looking for.

6£®Who is the man that spoke to you at the gate?

7£®I believe the reason why he likes traveling.

8£®I believe the reason that /which he gave me for his decision.

9£®The way that /which he explained to us was very simple.

10£®The way that /in which he explained the sentence to us was very simple.