`1.` The world’s energy resources are limited, so we should use them economically.
`2.` I understand your point of view, however, i don’t argee with it.
`3.` My father is on holiday, therefore, he is unable to atfend the meeting.
`4.` I'd like to go to the circus with you, but i have to finish all the homework.
`5.` The house is quite beautiful, moreover, the cost is not too high.
`text{Chú ý: Các dấu phẩy}`
`text{Good luck !}`