【题目】 We can’t do it that way --- but whether it will work is ______ matter.

【题目】One of the best ways for people to keep fit is to______ healthy eating habits.

【题目】It is said that the fire on Sunday night lasted about three hours ________ the firefighters came.

【题目】With no one to________ in such a frightening situation，she felt very helpless.

【题目】It was a nice house, but _______ too small for a family of live.

【题目】My brother is really ____. He often works in his office far into the night.

【题目】A cough is usually nothing to worry about unless it lasts for ten days ___.

【题目】Ten years ago the population of our village was_________ that of theirs.

【题目】I'll never forget the days________I worked hard at my lessons in Senior Three，________changed my whole life.

【题目】The house still needed a lot of work, but ___ the kitchen was finished.