Question

Who ________ running, Jim or Jack?

1. A.
   is good at
2. B.
   is better at
3. C.
   is the best

Answer 1

B
考查比较级的用法。句意“谁更擅长跑步，吉姆还是杰克？”根据所给范围是两者可知，应该用比较级。be good at“擅长......”；good的比较级是本田特热。故选B。