37.
One report concludes that many schools donot have, or likely to have, enough computers to
 use themeffectively.
(A) or
(B) nor
(C) or are
(D) nor are they
(E) nor are not
答案选D。prep上说两个并列的句子第二个句子的be，become要省略，但是这里的are为什么不省略？是不是因为这里be likely to是固搭，如果省略了are则会造成第二句的助动词是do的误解？
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