Read these sentences and fill in the gaps with 'who' or 'which'.
1. The new software programour boss made compulsory to learn is a real disappointment.
2.. Our professor
has written more than ten books on how to diet is an extraordinary person.
3.The caris parked in front of our house looks so comfortable.
2. Who
3. Which
1. The new software program which our boss made compulsory to learn is a real disappointment.
2.. Our professor who has written more than ten books on how to diet is an extraordinary person.
3.The car which is parked in front of our house looks so comfortable.
Объяснение: