It was she that ________a sharp whistle, which makes ________possible for us to catch the thief.
.They were known as “ aborigines”, _____ “the first people of the country”.
They climbed rocks, _____rivers and settled in the valley.
He has _______good knowledge of _____English language but not much of English history.
The weatherman said that it is ____ to rain, but not _____.
Harry is far _____ his brother in English.