＿to my regret, I am unable to accept your warm invitation

I feel so nervous about the National English Speech Competition tomorrow—________

___ a high percentage of Australians may bepeople who watch sports rather than do them, Australia is indeed a greatsporting nation!

This is the first time we _____a film in the cinema together as a family. [ ]

下列句子不属于宾语前置句的一项是（ ）