His Walkman is different from, and it is more expensive.

---You have tried on several shirts. ---Sorry to take up too much of your time. But __________ of them look good on me.

—Is this          pen, Tim? —No. It’s Mary’s.

--- Oh, there is someone knocking at the door. --- __________ must be your neighbour,     Mrs Black. 

—What did you do yesterday?—My brother took two friends of ________ to play chess with us. But I don’t’ know _______ of them.