I’d like to go swimming with you, ______ I am too busy today.

I’d like to go swimming _______ the water is too cold.

I’d like to go swimming _______ the water is too cold.

A．if                B．for               C．unless            D．whether

I’d like to go swimming with you, ______ I am too busy today.

A．but              B．and              C．so               D．or