As many successful businessmen believe, courage is as ______ to pioneering work as the intelligence, even more so．

 If you think that treating a woman well means always _______ her permission for things, think again.

Even students with        intelligence can be excellent students after improving their study habits.

 These flowers should not be watered too ______, once _____. 

John worked hard at his lessons and gained _____to a famous university last year.