Буду сделать три предложение по структуре "должно быть /не может быть, что"

Your parents must be very proud of you. твои родители должно быть гордятся тобой. такое пойдет? this article must be printed in 2 hours. эта статья должна быть напечатана через 2 часа. he must be waiting for his wife. он должно быть ждет свою жену. it can't be that simple. это не может быть так просто.

1. they continued to discuss ( simple active сказуемое) the items of the contract. 1. to define ( simple active подлежащее) the subject – matter of a science is to distinguish сказуемое the object it studies. 2. some employers argue that “management’s job is to manage” ( simple active сказуемое) and that workers do not have the knowledge needed to make ( simple active сказуемое) managerial decisions. 3. he went to the airport to meet  ( simple active обстоятельство) the representative of the firm. 4. i want to master  ( simple active сказуемое) the language of this country to understand the life of the people. 5. this article was published to draw  ( simple active обстоятельство) attention of many people. 6. to answer  ( simple active обстоятельство) this question we must know all the details of the matter.