____ most children nowadays are the only chidren, they tend to be more self-centered．

         A．Ever since    B．Now that           C．Only if    D．Even though

____ most children nowadays are the only chidren, they tend to be more self-centered．

       A．Ever since         B．Now that         C．Only if         D．Even though

____ most children nowadays are the only chidren, they tend to be more self-centered．