邀请她共进晚餐会是一个友好的表示。

It would be a nice ___gesture to invite her to dinner.

我写信感谢您邀请我参加开幕式的友好表示。

I am writing to thank you for your kind ___gesture in inviting me to the opening.

他的慷慨捐赠是对社区善意的表示。

His generous donation was a ___gesture of goodwill towards the community.