二、试试你的判断力，选择正确答案。
( ) 1. Everyone in our class_____.
A. enjoys to swim B. enjoy to swim C. enjoys swimming D. enjoy swimming
( ) 2.Both you and I ___ wrong.
A. was B. am C. were D. is
( ) 3. They ____ many happy hours ____ along the beach during that holiday.
A. spend, walking B. spent, walking C. cost , walking D. gave, walking
( ) 4. John ____interested in Chinese two years ago.
A. is B. became C. are D. were
