Recently many schools have faced what could be called the crisis of comprehension or in s

外语类 专四 已帮助 人

Recently many schools have faced what could be 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.

A.are

B.to be

C.being

D.have been

请帮忙给出正确答案和分析,谢谢!

更新中~