1. They will build a new house next year

=> A new house will be built next year. (Câu bị động)
2. I'm sorry I can't play the guitar.

=> I wish i could play the guitar (Câu ước)
3. I don't have a sister.

=> I wish i had a sister (Câu ước)
4. He said to me, " I can finish these work on time"

=> He said to me he could finish these work on time. (Câu tường thuật)
5. She asked me, why do you this work?

=> She asked me why i did this work. (Câu tường thuật; Wh-Question)
6. Lan asked him, " do you like soccer"

=> Lan asked him if he liked soccer (Câu tường thuật; Yes-No Question)
7. He said to me, " do this test again, please"

=> He said to me to do that test again. (Câu tường thuật)