III.combine the two sentences to complete the sentences
1.the building is very old .He lives there(where)
--> The building where he lives is very old.
2.I will tell you something .You didn't know it before(which)
--> I will tell you something which you didn't know it before.
3.I'll never forget the day .I met you then(when)
--> I'll never forget the day when I met you.
4.it was cold .however ,tom still went swimming(although)
--> Although it was cold, Tom still went swimming.
5.John is very sad .He fails the final exam(because)
--> John is very sad because he fails the final exam.
6.He never left the house .He had been born there(where)
--> He never left the house where he had beeb born.
7.I met the man .He works in a bank (who)
--> I met the man, who works in a bank.
8.here are the letters .they arrived this morning(which)
--> Here are the letters which they arrived this morning.
9.my grandfather is very old .he is still young at heart (although)
--> Although my grandfather is very old, he is still young at heart.
10.tom get a lot of money .he works hard(because)
--> Tom get a lot of money because he works hard.