---What’s the 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 ______

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

–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