1. sorry. your clothes yet. a didn't been ironed b haven't done iron c haven't been ironed 2. film stars love a been photographing b being photographed being photograph 3. in the 60s? a did the house build b was the house built c was built the house 4. thanks for the medicine. 5. this heater before or after meals? a should it be taken b it should take c should be taken it in a bathroom. 6. mrs. osbourne a cant to use it b not can be used c cannot be used once a month. 7. i a her hair coloured b has coloured her hair c has her hair coloured serviced next week. a am being the car b am having the car c have done the car 8. the painting worth at least fifty million dollars: a is thought to be b it is thought to be c is thought being 9. the ancient romans central heating. a are believed to invent b are believed have invented c are believed to have invented 10. we were expected the match against the army team. a to lose b losing c to be lost

1. I am sorry, your clothes haven't been ironed yet. (The correct answer is C - haven't been ironed. The sentence is in the passive voice and the clothes are the object of the action "ironed". Therefore, we need to use the past participle form of the verb, which is "been ironed". The correct auxiliary verb is "haven't" because the action has not been completed yet.)

2. Film stars love being photographed. (The correct answer is B - being photographed. The sentence is in the active voice and the film stars are the subject of the action "love". The correct form of the verb is the present participle form "being photographed".)

3. Was the house built in the 60s? (The correct answer is B - was the house built. The sentence is in the passive voice and the house is the subject of the action "built". Therefore, we need to use the past participle form of the verb, which is "built". The correct auxiliary verb is "was" because the action happened in the past.)

4. Thanks for the medicine. (No correction needed.)

5. Should it be taken in a bathroom? (The correct answer is A - should it be taken. The sentence is in the passive voice and the medicine is the subject of the action "taken". Therefore, we need to use the auxiliary verb "should" to indicate that it is a suggestion or recommendation.)

6. Mrs. Osbourne cannot use it. (The correct answer is C - cannot be used. The sentence is in the passive voice and "it" is the object of the action "use". Therefore, we need to use the past participle form of the verb, which is "be used". The correct auxiliary verb is "cannot" to indicate that Mrs. Osbourne is not able to use it.)

7. I am having the car serviced next week. (The correct answer is B - am having the car. The sentence is in the active voice and I am the subject of the action "having". The car is the object of the action. Therefore, we need to use the present participle form of the verb "having", which is "having the car".)

8. The painting is thought to be worth at least fifty million dollars. (The correct answer is A - is thought to be. The sentence is in the passive voice and the painting is the subject of the action "worth". Therefore, we need to use the present participle form of the verb "thought", which is "is thought to be". The correct auxiliary verb is "is" because the value of the painting is still valid in the present.)

9. The ancient Romans are believed to have invented central heating. (The correct answer is C - are believed to have invented. The ancient Romans are the subject of the action "invented". Therefore, we need to use the past participle form of the verb, which is "have invented". The correct auxiliary verb is "are" because the belief is still valid in the present.)

10. We were expected to lose the match against the army team. (The correct answer is A - to lose. The sentence is in the active voice and we are the subject of the action "expected". The match is the object of the action. Therefore, we need to use the infinitive form of the verb "lose", which is "to lose".)