Her father told her to be careful when _____ the street.
Australia is _______ country.
“John” and“Tom” are _______ names in the English-speaking countries.
It is _______ impossible to complete the new teaching building in less than three months.
The great success of this programme has been _______ due to the support given by the local businessmen.
There was such a long queue for coffee at the interval that we _______ gave up.