Thomas Edison considered genius to be _____ one per cent inspiration and ninety-nine percent perspiration.
He appears to be optimistic, but, ______, he is quite pessimistic.
______ you may have, you should gather your courage to face the challenge.
He kept smiling secretly and we were all wondering_______that made him so happy.
People who don’t smoke have less _____ of suffering from lung cancer than those who do.
Sitting at the back of the room but in front of some old men and women ______ a very shy girl with two bright eyes.