`I.`
`1.` `->` I think we should reduce the amount of garbage we produce.
`2.` `->`The students who live in that dormitory are from Australia.
`3.` `->`If Thuy didn't have to do her homeowork, she could go to the cinema.
`4.` `->`Natural disasters can be predicted accurately in the future.
`II.`
`1.` Although Phong's house is far from his school, he always go to school on time.
`2.` Lan enjoyed the peaceful atmosphere while Maryam was praying.
