问题
选择题
The dog is very ___, and it can work out the problem____.
A．smart; easy
B．smart; easily
C．smartly; easily
D．smartly; easily
答案
答案：B
题目分析：smart形容词，聪明的，精明的；smartly副词，精明地；easy形容词，容易的；easily副词，容易地。句意：这条狗非常聪明，它能轻松地算出这道题来。结合语境可知前一空用形容词做表语，后一空用副词做状语。故选Ｂ。