I've got the offer from Cambridge University!It sounds_____to be true.A.too good B.good enough

I've got the offer from Cambridge University! It sounds__A___to be true.
A.too good B.good enough
too...to... 太.而不能.能翻译一下吗？我有来自剑桥大学的礼物（赠与物）！这听起来太美妙了有点不像是真的。