Use a relative pronoun preceded by a preposition to combine each pair of the sentences below: 1) Mr.Pierce sends you his regards. I talked to him just now. 2) Sorry, I can't give you the only thing. I haven't got it

Use a relative pronoun preceded by a preposition to combine each pair of the sentences below
1. Mr.Pierce sends you his regards. I talked to him just now
--> Mr.Pierce...............................................................
2. Sorry, I can't give you the only thing. I haven't got it
--> Sorry, I can't give you the only thing..........................