The warning we were given as children ________ an apple a day keeps the doctor away may,in fact,have a scientific explanation.
I don't think Jack is a man to bewhen we are in trouble and need his help.
The theory by Einstein was later to prove true, but at that time few people could accept it.
____________ your father saw you, what would he say? A. IfB. Suppose C. Unless
I'm happy ________________ you are happy. A. if B. unless C. as long as
_________ I am, I will be thinking of you. A. Where B. Wherever C. Who