----I have got a headache. ---- No wonder. You ________ in front of that computer too long.
Recently I bought an ancient Chinese vase, ______ was very reasonable.
Carol said the work would be done by October, _________ personally I doubt very much.
In the dark street,there wasn’t a single person she could turn for help.
The novel was completed in 1978, the economic system has seen great changes.
The villagers, _________ had been damaged by the flood, were given help by the Red Cross.