问题
选择题
| Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry. |
A. where B. whether C. that D. why |
答案
答案：D
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| Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry. |
A. where B. whether C. that D. why |
答案：D