`1.`Every year, Viet Nam exports millions of tons of rice.
`→`Millions tons of rice are exported by Viet Nam every year.
`2.`Vietnamese people celebrate their Lunar New Year Festival around January and February.
`→`Lunar New Year Festival is celebrated by Vietnamese people around January and February.
`3.`Our teacher always advises us to study harder on the second term.
`→`We are always advised to study harder on the second term.
`4.`The Library of Congress in the USA employs over 5000 employees.
`→`Over 5000 employees are employed by the library of Congress in the USA.
`5.`My mother is making “Special Chinese Fried Rice” in the kitchen now.
`→`"Special Chinese Fried Rice" is now being made in the kitchen by my mother.
`6.`Mr. Tam is painting his pictures with his patience.
`→`His pictures are being painted with Mr.Tam's patience.
Giải thích :
- Câu chủ động với thì hiện tại đơn : S + V + O
`→`Câu bị động : S + am/is/are + VpII + (by O)
- Câu chủ động với thì hiện tại tiếp diễn : S + am/is/are + Ving + O
`→`Câu bị động : S + am/is/are + being + VpII + (by O)
`-` Với chủ ngữ là I, He, She, They, We thì ta có thể bỏ by O