1.不能用that, and 是连词,不能作为一句话的开头, make 后加不带to的不定式,所以应该是:
It is more interesting to see the film, and the film may make things simly understand.
2. 应该用as, 不能用through, 把as time goes by当短语就行了
3. 可以是 I am a 16-year-old boy.
that 在这里是连词,后面不可以加名词的。
make 后面加省略to的不定式,也就是跟动词原形。 所以 And the film may make things simply understand
through改成as
去掉 old.