..Fire safety in houses, _____ most deaths occur, is difficult to achieve.
Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.
It was raining heavily. Little Mary felt cold, so she stood ______ to her mother.
______ loud music in public is against the law in the UK.
They succeeded in killing pests which came from the foreign countries ______ a lot of hard work.
When you meet a new word in reading the English papers, you can guess its meaning but needn’t always ______ the dictionary.