________ on-going division between English-speaking Canadians and French-speaking Canadians is _______ major concern of the country.
Though suffering a serious injury, Rafael Nadal refused to _______ the game and went on.
Though suffering constant noise from the outside world, little Tommy was still working with all his attention _____ on his unfinished warship model.
A fire broke out in a commercial mall unexpectedly__________the customers and the persons working there fleeing for safety
To greatly raise people’s living conditions, _______.
We _______ contact each other; she is _______ of an acquaintance than a friend.