Have you _______it?’ —Sorry. Would you please explain it for a second time?

I found a story-book on the desk, it isn’t mine, it is ___,I think.

She, as well as her workmatesforward to seeing their new boss.

If she _____the Great Wall next Sunday, _____ I. [ ]

I have great ________ in finishing the work by myself. Could you help me?— No problem.