Eugene’s never willing to alter any of his opinions, so it’s no use ________ with him.
—Have you read today’s report about your performance?—I don’t care what about me.
In the cave they found the very book, the cover of _______was torn.
—How was your examination?—It wasn’t very difficult,but it was__________long.
---How is your plan getting along?----I can’t carry on _____ any longer. Someone must help me.
Nuclear energy may be dangerous if