14.They will probably translate her new books into a number of foreign languages

->her new books will probably be translated into a number of foreign languages

15. Has someone repaired this telephone?

->Has this telephone been repaired?

16. They told me that our teacher was sick

->our teacher was told to be sick

17. They had to cancel the flight because of the bad weather

->the flight had to be cancelled because of the bad weather

18. We must finish the project on time

-> the project had to be finished by us on time

Câu bị đông thì quá khứ đơn

S+WAS/WERE+P2

THÌ HTHT 

S+HAVE/HAS+BEEN+P2

THÌ TLĐ

S+WILL+BE+P2

must->had to

have->had to

14. Her new books will be probably translated into a number of foreign languages

15. Has this telephone been repaired?

16. I was told that our teacher was sick

17. The flight had to be canceled because of the bad weather

18. The project must be finished on time

QKĐ: S + was/ were + PP + (by O)

QKTD: S + was/ were + being + PP + (by O)

QKHT: S + had + been + PP + (by O)

HTĐ: S + am/ is/ are + PP + (by O)

HTTD: S + am/ is/ are + being + PP + (by O)

HTHT: S + have/ has + been + PP+ (by O)

TLĐ: S + will be + PP + (by O)

TLG: S + is/ am/ are + going to + be + PP + (by O)

Modal verb: S + modal verb (should, must, have to, can,...) + be + PP + (by O)