Use the present perfect form (affirmative, negative or interrogative) of the verbs in brackets. ex: it rain) for a long time. it hasn't rained for a long time. (write) 3 articles since last week. (be) to poland? we ) to russia. doctors (cure) many deadly diseases. she (not / make) dinner yet. tim can’t find his key. he ) it. i think i (meet) him once before. andy (not see) his friend for years. (travel) to the moon. , ! add a question-tag to these sentences. ex: you are ok, you are ok, aren’t you? lizzie enjoyed her breakfast, the boy is from turkey, they will come tomorrow, you are latvian, they always sleep after lunch, she has a brother, he has done his homework, you shouldn’t smoke, the students see it every day, you won’t tell anyone,

James has written 3 articles since last week
Have you been to Poland?
We have been to Russia
Doctors have cured many deadly disease
She hasn't made dinner yet
Tim can't find his key. He has lost it
I think I have met him once before
Andy hasn't seen his friend for years
People have travelled to the Moon

Lizzie enjoyed her breakfast, didn't she?
The boy is from Turkey, isn't he?
They will come tomorrow, won't they?
You are Latvian, aren't you?
They always sleep after lunch, don't they?
She has a brother, hasn't she?
He has done his homework, hasn't he?
You shouldn't smokem , should you?
The students see it every day, don't they?
You won't tell anyone, will you?