一、单项选择 （共10小题，每小题2分，计20分）
( )1. Simon thinks _____________ than ____________ in his class.
A. more carefully; anyone else B. more careful; else anyone
C. most carefully; other students D. most careful; the other students
( ) 2. The little boy was often seen ____________ in the park.
A. sit B. to sit C. sitting D. sat
