He should go to bed early.注意：should是情态动嫌如词，情芹歼启态动词后加动词原形，改亏所以go不加es。
He should go to bed early.
He should go to bed early.
he have to go to bed early。
用英语说：他应该早早上床睡觉
He should go to bed early.注意：should是情态动嫌如词，情芹歼启态动词后加动词原形，改亏所以go不加es。
He should go to bed early.
He should go to bed early.
he have to go to bed early。