不加,可以加my, his等物主代词。
He has his breakfast at home.
lunch, supper 一样。
你好,不需要加a或者the,就直接是:have breakfast:吃早饭
三餐前不用加任何寇词,如果是有形容词来修饰,则要加,如have a quick breakfast.
三餐饭前不用加
如:have breakfast/lunch/dinner
如果前面有一个修饰词,可加a/an
如:have a big braekfast
for + n./v.-ing