Exercise 1. insert the verb to be in the present simple: 1.1 не a student. не a good student. 1.2 his father a doctor. 1.3 my mother not a teacher. 1.4 your sister a pupil? – yes, she . 1.5 they at home now. 1.6 this my house. 1.7 they at school? – no, they not at school. 1.8 your father a pilot? – yes, he . 1.9 nick not a student. he a pupil. he at school now. 1.10 these men drivers. 1.11 my friend an engineer. he at work. 1.12 your parents at home? – no, they not.

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