1) are peter and nick engineers? peter and nick are not engineers.

is she proud of her children? she is not proud of her children.

will he be in moscow next month?  he won't be in moscow next month.

2) 1. were, 2.will be, 3. is, is. 4. were, 5. will your sister be at home in two hours?     6. was, is, 7. are, am