单选题
A lot of urban people come (into) the country and (suddenly) become (terrible) concerned about its appearance and (what) the farmer is doing.
A、
into
B、
suddenly
C、
terrible
D、
what
【正确答案】
C
【答案解析】
[解析] concerned为形容词，修饰形容词应该用副词。所以应将terrible改为terribly。
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