Do you think we are going the right way to the Forbidden City?—Sorry, I’m not sure．But it _______ be．

(2014·福州市高中毕业班质量检查)Across all media，people are debating about________we need to keep track of every school bus on China’s road

I hope _________ fun at the birthday party.

I have _________ haircut _________ you.

I’m afraid I’ve got a bad cold. —