填空题

(To be measured) in terms of its members, teaching is (the world’s biggest profession). Though the roles and functions of teachers (vary from country to country), the variations are generally greater within a country than (they are) between countries.
  • A. To be measured
  • B. the world’s biggest profession
  • C. vary from country to country
  • D. they are

【参考答案】

A (改为: Measured)