问题
选择题
| He is said _____ a new machine recently, but I don't know when he will make it. |
A. to design B. to be designed C. to have designed D. to have been designing |
答案
答案：D
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| He is said _____ a new machine recently, but I don't know when he will make it. |
A. to design B. to be designed C. to have designed D. to have been designing |
答案：D