Einstein’s Theory of Relativity is so ________that most of us can not understand it.

 Whenever a patient needs an injection of Penicillin, the doctor does need to make sure whether his patient is ___ to the medicine.

Scientists are increasingly _____ that the earth is getting hotter because of carbon dioxide and other gases. 

 It’s none of your business. Don’t be so ______ about what you shouldn’t know.

Be _____ about life. You can get over those unhappy moments and cucceed in time If you keep on trying.