当你听到他说的话时，你会不敢相信自己的耳朵。

You will ___not ___believe ___your ___ears when you hear what he said.

当我听到这个好消息时，我简直不敢相信自己的耳朵。

I could ___not ___believe ___my ___ears when I heard the good news.

如果她告诉你这个秘密，你可能会不敢相信自己的耳朵。

If she tells you the secret, you might ___not ___believe ___your ___ears.