-- Would you like to come to the dinner party here on Saturday ?

　 ---Thank you. I'd love to, _____ I'll have to finish all my homework before the weeked, otherwise, my parents won't let me go.]

A．because 　　　

B．and 　　　　

C．so 　　　　

D．but

神经垂体分泌的激素有

A．抗利尿激素

B．泌乳素

C．催产素

D．β-促脂素

E．以上都不是