.-- This book is _________ more useful for us students.-- Yes, but it is _________ too difficult.
65. Two dogs ______ a bone, and a third runs away with it.
64. They hurried away _____ fear that should be caught in rain.
63. The plan for a new airport have been scrapped __________ an extension to the old one.
62. This area is famous _____ its apples and it is famous _____ the home of apple.
61. --- I am not _____ this city. Would you please introduce it to me?--- With pleasure.