there is no such thingas a free lunch in the world, one millionpeople of the city decided to build their home by themselves.

When he realized the police had seen him,the man ___ the exit sa quickly as possible.

The headmaster made a suggestion that thesports meet until next Sunday

Not until he fainted (昏厥)in the office did we fully that he was seriously ill.

ou know you ______to be here by7:30 — Yes, I do.