Question

He is ______ as a leader but he hasn't ______ in teaching.

1. A.
   success; many experiences
2. B.
   a success; much experience
3. C.
   great success; an experience
4. D.
   a great success; an experience

Answer 1

B
success本意为不可数名词，如果表示具体的某件事成功，可以用作或可数名词。experience作“经验、体验”讲是不可数名词，作“经历”讲是可数名词。