She is a wellknown doctor now, but she ________ as a cleaner at the hospital for five years.
The teacher frowned ___ annoyance when a student fell asleep during his lesson.
Hearing the sound, the animal disappeared into the bushes, ___ Mrs. Stone picked up her bag and ran all the way home.
Sorry to have kept you waiting. You must have thought ___.
____, I had to buy a new one.
I have been studying computer for years and I still ___.