问题
选择题
We have a high regard for Mr. Smith because he always tries to _____________his principles.
A．look forward to
B．live up to
C．keep up with
D．put up with
答案
答案：B
这题考查词组辨析，look forward to 渴望live up to符合、达到…期望 keep up with 跟上put up with容忍。结合句意：我们钦佩斯密斯先生，因为他一向总是坚持原则。所以选B。