【2015·福建】It was________of Michael to inform us of his delay in case we got worried.
She needs the work ____ before tomorrow.
--Did a letter come for me? --Yes, ___ came for you this morning.
He is determined to devote himself to ___ the country.
Whenever we were ___, he is always ready to ___ us some help.
The way ___ you are doing it is completely crazy.