6. We must 　　　　bad habits.

C. to the point/off the point/at all points/on the point

5. My computer suddenly 　　　　last night and I had to stop designing the new building.

4. Scientists hope to 　　　　soon in their fight against heart disease.

3. Due to quarrelling so frequently, their marriage 　　　　.

2. On hearing the news that the war was over, the old woman 　　　　crying.

1. Thieves 　　　　our house while we were away on holiday.

5. He will 　　　　the money in monthly installment.

B. break out/break away from/break into/break up/break through/break down

4. My boss 　　　　me for my work last week.

3. I 　　　　for my work by the week.

2. He at last 　　　　his debts after ten years of hard work.