问题
选择题
Mr. White is a careful and experienced engineer, so he is often to finish some challenging tasks.
A．appreciated
B．approached
C．appointed
D．agreed
答案
答案：C
题目分析：考查动词辨析：A. appreciated欣赏，B. approached靠近，C. appointed任命，委派，D. agreed同意，句意：怀特先生是仔细的有经验的工程师，所以他经常被派去完成有挑战性的任务。选C。