My kitchen knife is very sharp.

My grandfather uses a hearing aid.

This contract requires the signatures of both parties.

We signed the contract.

He is not at all lazy.

Even if you are rich, you cannot buy everything.

We signed the new contract.

He mourned the death of his friend and expressed deep condolences.

He expressed words of condolence for his friend's death.

He went to the church to offer condolences for his friend's death.