Noone has _____ been able to trace the author of the poem.

We are interested in the weather because it _____ us so directly ------ what we wear, what we do, and even how we feel.

—How do you find your new treatment?—Oh,it ______ wonderfully.

Does this meal cost $50? I ____something far better than this?

My enthusiasm for Chinese football team gradually _____ because of their countless failures.