21. Active: The students had completed the project before the deadline.
a) The project had been completed by the students before the deadline.
b) The project has been completed by the students before the deadline.
c) The project was completed by the students before the deadline.
d) The project is completed by the students before the deadline.
Answer: a
22. Active: She writes letters to her friends every week.
a) Letters are written by her to her friends every week.
b) Letters were written by her to her friends every week.
c) Letters have been written by her to her friends every week.
d) Letters is written by her to her friends every week.
Answer: a
23. Active: They will organize a party next month.
a) A party will be organized by them next month.
b) A party is organized by them next month.
c) A party has been organized by them next month.
d) A party was organized by them next month.
Answer: a
24. Active: The doctor treated the patient carefully.
a) The patient was treated carefully by the doctor.
b) The patient is treated carefully by the doctor.
c) The patient has been treated carefully by the doctor.
d) The patient was being treated carefully by the doctor.
Answer: a
25. Active: The teacher is correcting the answer sheets.
a) The answer sheets are being corrected by the teacher.
b) The answer sheets are corrected by the teacher.
c) The answer sheets were corrected by the teacher.
d) The answer sheets has been corrected by the teacher.
Answer: a
26. Active: Someone has repaired my car.
a) My car has been repaired by someone.
b) My car is repaired by someone.
c) My car was repaired by someone.
d) My car has repaired by someone.
Answer: a
27. Active: The teacher had praised the students for their hard work.
a) The students had been praised by the teacher for their hard work.
b) The students were praised by the teacher for their hard work.
c) The students have been praised by the teacher for their hard work.
d) The students are praised by the teacher for their hard work.
Answer: a
28. Active: The company produces thousands of cars every year.
a) Thousands of cars are produced by the company every year.
b) Thousands of cars were produced by the company every year.
c) Thousands of cars have been produced by the company every year.
d) Thousands of cars is produced by the company every year.
Answer: a
29. Active: She will finish the assignment soon.
a) The assignment will be finished by her soon.
b) The assignment is finished by her soon.
c) The assignment has been finished by her soon.
d) The assignment was finished by her soon.
Answer: a
30. Active: He teaches English at the school.
a) English is taught by him at the school.
b) English was taught by him at the school.
c) English has been taught by him at the school.
d) English is being taught by him at the school.
Answer: a