I’ve been away for only three years, _____ I can hardly recognize my hometown

__________ reasons for my decisionto become a university professor, my father’s advice was __________ mostimportant one

Bob, would you like to come to the party — ________.

Water can absorb and give off a lot of heat without big changes in temperature,thus creating a___environment.

The old lady, _______ had been killed in the war, was given help by the local government．