Complete the text using the present perfect form of the verbs in the box
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The concert hall was opened in 2005
3000 books are sold every week
The parcel will be delivered tomorrow morning
The flight cannot be cancelet because of the rain
This kind of furniture won’t be produced next year
Paper is made from wood
Coffee isn’t grown in Russia
The New Year tree wasn’t decorated last night
The letter hasn’t been sent yet
The airport is surrounded by fields

The letter was sent by the headmaster
All the windows were cleaned by Mrs. Simpson today
The suit has been packed by Frank
The bills were paid by Bob
She will be examined by the doctor tomorrow
The dor is painted by my granny every year
English exam is being taken by the students at the moment

1. Barbara Grey works in East Square London School, doesn't she? - Yes, she is.

2. Mr Wooding invited a group of Russian students to London, didn't he? -Yes, he did. 

3. A group of up to 22 people can go to London, can't it?  - No, it can't.
4. Mr Wooding didnt write about the time of the visit, did he? - No, he didn't.
5.The Russian students will stay wth English families, won't they? - Yes, they will.
6. The Russian students wont be responsible for social programme, will they? - Yes, they will.