With all his attention ____ on the computer game, the boy even didn't notice his mother came in.

A．was fixing

B．was fixed

C．fixing

D．fixed

关于儒家和道家对于入世和出世的观点，下列说法正确的是（）

A、儒家强调入世，道家强调出世

B、儒家强调出世，道家强调入世

C、二者都讲究入世

D、二者都强调出世