Thì bị động của câu hỏi. Đổi sang câu bị động:
1: Did your friend mail that letter ?
2: Has Nina finished the work?
3: Did he speak about tropical countries in the world?
4: Had your sister cleaned the floor when I came ?
5: Does he make bad chocolate cake?
6: Must you post this letter?
7: Have you taken my book?
8: Can you clean the house?
9: Does he steal my ruler ?
10: Does your friend buy this house
1.Was that letter mailed by your friend?
2.Has the work been finished by Nina?
3.Were tropical countries spoken about in the world?
4.Had the floor been cleaned by your sister when l came?
5.Is bad chocolate cake made ?
6.Must this letter been posted?
7.Has your book been taken?
8.Can the house been cleaned?
9.Is your ruler stolen?
10.Is this house bought by your friend?
1: Did your friend mail that letter ?
was that letter mailed by your friend?
2: Has Nina finished the work?
Has the work been finished by nina?
3: Did he speak about tropical countries in the world?
were topical countries in the world spoken?
4: Had your sister cleaned the floor when I came ?
Had the floor been cleaned by your sister when I came?
5: Does he make bad chocolate cake?
is bad chocolate cake made by him?
6: Must you post this letter?
Must this letter be posted?
7: Have you taken my book?
Has my book been taken?
8: Can you clean the house?
can the house be cleaned?
9: Does he steal my ruler ?
is my ruler stolen?
10: Does your friend buy this house
is this house bought by your friend?
