2. 职称英语
  3. Although he had looked through all the reference materials on the subject, he st

Although he had looked through all the reference materials on the subject, he st

游客2024-08-17  13
问题 Although he had looked through all the reference materials on the subject, he still found it hard to understand this point and his tutor’s explanation only______to his confusion.
选项 A、extended
B、amounted
C、added
D、turned
答案 C
解析
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