By the end of last year, I ________(be) to the West Hill Farm three times.
By the time I got up, Mom _________(go) out for some exercise.
I __________(learn) 1,000 English words by last term.
By 9 o’clock last night, we ________(get) 200 pictures from the spaceship.
When I went into the classroom, the final bell ________(ring). I was happy that I wasn’t late.