问题
选择题
— What is that noise? — Oh, I forgot to tell you that the new machine _____. |
A. was tested B. will be tested C. has been tested D. is being tested |
答案
答案:D
— What is that noise? — Oh, I forgot to tell you that the new machine _____. |
A. was tested B. will be tested C. has been tested D. is being tested |
答案:D