As for how to promote public education Professor Li gave us a lot of suggestions which r

问题补充：

As for how to promote public education, Professor Li gave us a lot of suggestions which reasonable and practical.

A. appeared

B. sounded

C. looked

D. listened

答案：

A. appeared

(答案→)B. sounded

C. looked

D. listened

解析：考查动词。A出现；B听起来；C看起来；D听。句意：关于怎么提升公共教育，李教授给我们很多听起来合理和实用的建议。