Alter the following sentences

1.Physical attraction is important for marital happiness.
Most people think physical sttraction is important for marital happiness.

2.Economic sanctions are ineffective.
Almost 90% of the economic sanctions are ineffective.

3.Alcohol causes people to become violent.
Alcohol can probably cause people to become violent.

4.Passive smoking causes cancer.
Passive smoking can very likely cause cancer.

5.Recycling is the best solution to the waste disposal problem.
Recycling might be the best solution to the waste dispodal problem.

6.Physical exercise lessens the severity of depression.
Sometimes, physical exercise lessens the severity of depression.

7.Great novels do not make great films.
Great novels do not definitely make great films.

7.Private schools provide better education than do public schools.
There is a good possibility that private schools provide better education that do public shools.