—What made him sick?—That he lost the chance of success made him ___.
I ______ to send him a gift to congratulate him on his marriage, but I _____ it.
He is such a lazy man _______ nobody wants to work with ______.
—Sorry for being late for the party. —________ earlier next time, will you?
Measures must be taken to prevent pollution ________ happily.
______ is surprising to us is that Tom, for ______ English was once boring, can speak English fluently as though he were a native speaker.