问题
选择题
| The road is covered with snow. I can't understand ______ they insist on going by motorbike. |
A. why B. whether C. when D. how |
答案
答案：A
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| The road is covered with snow. I can't understand ______ they insist on going by motorbike. |
A. why B. whether C. when D. how |
答案：A