We’re talking about the piano and the pianist __________ were in the concert we attended last night.

We’re talking about the piano and the pianist _____ were in the concert we attended yesterday.   

We’re talking about the piano and the pianist _____ were in the concert we attended yesterday.   

A．which            B．whom            C．who              D．that

We’re talking about the piano and the pianist __________ were in the concert we attended last night.

We’re talking about the piano and the pianist _____ were in the concert we attended yesterday.   

1. A.
   which
2. B.
   whom
3. C.
   who
4. D.
   that