If you ____ your promise, the results will be sure to satisfy you. [ ]

to have kept you waiting so long, but it’ll still be some time ______ Mr. Smith is available.

Because of the heavy snow, the researchers failed to reach their ________ on time as expected.

I wonder if your father _______ you to go swimming.— I’m not sure. But I will tell you if he _______ to let me join you.

Life is not measured by the number of breaths we take, but by the moments _______ take our breath away.