Both of them refused to say sorryand neither was willing to talk to

this novel, he is ____ as ahero, actually he is a coward

uld have been warned of thedanger—_______, but he wouldn’t listen to me

ere is less and less coal and oil,scientists are exploring new ways of making use of ______ energy, such assunlight, wind and water for power and fuel

Stamps are usually used _____letters.