3) 1. will be asked
2. were told
3. A usually checked
4. is seldom mentioned
5. not allowed
6. showed
4) 1. This film has been seen by our class
2. He has never played the flute
3. I have been taken by my friend to the concert
3) 1. will be asked
2. were told
3. A usually checked
4. is seldom mentioned
5. not allowed
6. showed
4) 1. This film has been seen by our class
2. He has never played the flute
3. I have been taken by my friend to the concert