练习:主谓一致
  1. I, who____ your friend, will try my best to help you with your English.
  A. am   B. is  C. are   D. be
  2. The rich ____ not always happy.
  A. are   B. is   C. has   D. have
  3. Neither Tom nor Jack and I ____ his students.
  A. are   B. am   C. is   D. was
  4. Mary as well as her sisters ____ Chinese in China.
  A. are studying B. have studied C. studies D. study
  5. Neither my father nor I ____ at home.
  A. am   B. is   C. are   D. be