问题
选择题
| Buying a mobile phone for personal use is not an easy job because technology _____ so rapidly. |
A. is changing B. has changed C. will have changed D. will change |
答案
答案：A
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| Buying a mobile phone for personal use is not an easy job because technology _____ so rapidly. |
A. is changing B. has changed C. will have changed D. will change |
答案：A