—What is that noise?

—Oh,I forgot to tell you that the new machine         .

—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

—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

—What is that noise?
—Oh,I forgot to tell you that the new machine         .

–What’s that noise?
–Oh, I forgot to tell you. The new machine ______

1. A.
   was tested
2. B.
   will be tested
3. C.
   is being tested
4. D.
   has been tested

–What’s that noise?

–Oh, I forgot to tell you. The new machine ______.

A. was tested   B. will be tested   C. is being tested   D. has been tested

——What’s that noise?

——Oh, I forgot to tell you. The new machine ______.

A. was tested     B. will be tested      C. is being tested       D. has been tested