摘要： The space is left to let the rail expand when it gets hot, ? A. isn’t it B. is it C. doesn’t it D. does it
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34. The space is left to let the rail expand when it gets hot, ______?
A. isn’t it B. is it C. doesn’t it D. does it
查看习题详情和答案>>The space is left to let the rail expand when it gets hot, ______?
A. isn’t it B. is it C. doesn’t it D. does it
查看习题详情和答案>>
34. The space is left to let the rail expand when it gets hot, ______?
| A．isn’t it | B．is it | C．doesn’t it | D．does it |