1. 1. Tom didn’t go to hear the singer because he ______ of him.

   A. heard              B. would hear          C. has heard       D. had heard

2. —— The house looks terrible!

  —— Yes, it is. I was told that it was at least two years since it ________.

    A. had painted    B. painted      C. had been painted      D. was painting

3. Until then, his family _______ from him for six months.

    A. didn’t hear       B. hasn’t been hearing          C. hadn’t heard             D. hasn’t heard

4. There was a complete silence when he _______ the radio.

    A. has turned off           B. turned off          C. had turned off           D. would turn off