Presenting your case.
It is better to use impersonal phrases rather than ‘I think’:
It is widely believed that young children need to be with
their mothers . . .
Most people consider that fast food is very convenient . . .
It is generally agreed that school uniforms develop a
group identity . . .
It is probable/possible that fast food will become more
acceptable . . .
This evidence suggests that most children benefit from
nurseries . . .
However, if you want to present a minority point of view,
you can use the following:
It can be argued that children benefit from a diet of
hamburgers.
It has been suggested that school uniforms make children
more rebellious.
Some people believe that nursery education damages
children.