他不应该在公共场合那样做。

He shouldn't behave like that ___in ___public.

这种害羞让我很难在公共场合说话，甚至很难像应该的那样经常和朋友出去。

This shyness makes it hard for me to speak ___in ___public, or even to go out with my friends as often as I should.

她在公共场合唱歌感到紧张。

She felt nervous singing ___in ___public.