_____ the doctors really doubt is _____ my mother will recover from the serious disease soon.

Much to the couple’s comfort, their income is now double ________ it was five years ago. 

 One reason for her preference for city life is _______ she can have easy access to places like shops and restaurants. 

 —My wife tries her best to do everything for our children.—That's exactly       I disagree.

 One concern people have now is ______ printing passengers’ names and ID numbers on tickets will make it harder to protect their private information.