单选题
The more (frequent) the child expresses his (interest) in (an) activity, the stranger (it) will become.
A、
frequent
B、
interest
C、
an
D、
it
【正确答案】
A
【答案解析】
[解析] 应该改为frequently。frequent是形容词，此处修饰动词，应该用副词。
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