We want to sit at the table near the window.—I’m sorry，but it________ already

The members of the board are discussing the problem right now; it will _____ have been solved by the end of next week

From his _______ eyes, I know nobody can _______ him to change his mind.

* —Mum, we’re going to visit an old town this weekend.—________！

_______ impressed me was the boy’s ability to dealwith this kind of difficult physics problem.