We have a high regard for Mr. Black because he always tries to his principles. A. live u

问题补充：

We have a high regard for Mr. Black because he always tries to his principles.

A. live up to

B. look forward to

C. catch up with

D. put up with

答案：

(答案→)A. live up to

B. look forward to

C. catch up with

D. put up with

解析：考察词组。Live up to实现，不辜负，做到 look forward to 期望 catch up with 赶上 put up with 忍受

句意为，我们很尊重布莱克先生，因为他总是遵循自己的原则