I didn't understand the film because I ____ ____ the book. (not read)
hadn't read
I was tired in the afternoon because I ___ ____ in the morning. (swim)
had swum
Victoria knew all the words because she __ _____ this song before. (sing)
had sung
After I ___ ____ the homework in my notebook, I put it in my backpack. (write)
had written
She had an accident because it was the first time she ___ ____ a car. (drive)
had driven
