Thinking that the students were having an evening class, the teacher left the classroom, ______.
A computer is so useful a machine ________ we can use everywhere.
---Spacecraft “Discovery” has failed in the course of launch. ----_______? They have been preparing for the test.
I can hardly imagine so pretty girl like you ________ boxing.
---Why did you put the wood near the fire? It’s dangerous. ---Don’t worry. Wet wood won’t _______.
— Why didn’t you come to Mike’s birthday party yesterday? — Well, I ____, but I forgot it.