Who is ____ boy, Jim, Tom or Tony

what do you think of Bill? —He is a hard-working student and he always ____himself in study.

(2013·泰安模拟)Although　　　to be the best in a recent science competition, the student remains modest.

Tom has a (n)for language，whilehis sister is a born pianist A．gift B．present C．ability D．intelligence

The tourists can not help wondering ______ the ancientpeople could manage to complete the magnificent building without modernequipment.