aven’t seen each other for _______,though we are in the same city

The moment the 28th Olympic Games _______ open, the whole world cheered. [ ]

Do you have any difficulty ________

－Have you written anything on Chinese traditional food so far－__________, but I have a plan for it.

It’s a long time ______I saw you last.— And what is a pity now that it will be a long time______ we see each other again.