Whatever rank you may be in, it would be wrong to the law into your own hands.
The number of the teachers who ______ cars in our school ____ increasing very fast.
I hadn't seen her for 10 years, but I ____ her at once.
——What a fine day! Shall we go picnicking?——______. But we need to be home before six o’clock for the football match.
It was freezing last night, so they had the fire___ all night long.
Astronomers and scientists think that a black hole is a region of space ______ which matter has fallen and _______ which nothing can escape.