Recently many schools have faced what could he called the -crisis of comprehension or, in simple terms, the phenomenon of studen

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问题 Recently many schools have faced what could he called the -crisis of comprehension or, in simple terms, the phenomenon of students with phonic and grammar skills still ______ unable to understand what they read.

选项 A、are
B、to be
C、being
D、have been

答案C

解析 动名词being做students的逻辑谓语,相当于...students...being unable to understand what they read.整个动名词短语做of的宾语,所以只能选C。
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