问题补充:
-------a certain doubt among the students as to the necessity of the work.A.They had B.There existedC.It existed D.There had
答案:
题干翻译为:同学们对这项工作的必要性有一定程度的怀疑.
题目考察there be 句型,注意固定搭配,不要和have重叠使用.
there be 句型亦可用there exist表达.选B
======以下答案可供参考======
供参考答案1:
一定的怀疑,在学生中间的必要性的工作。
A 他们 B。存在
C。它存在 D。有
选B