Next now i'll fly to london.i stay with my pen friend.they'll meets me at the airport.my pen friend is introducing me to his family.найти нужно ошибку в предложениях

Next (!)week I'll fly to London.(!)I'll meet with (!)my pen friend.They'll meet(!) me at the airport.My pen friend will introduce(!) me to his family. (!)I phone my mum and (!)will say (!)that I am OK.My host family will show(!) me my room.

Peter (was staying) at a seaside hotel on holiday when he (met) his friend.
While I (was having) lunch the sun (came) out again.
Who were you (talking to) on the telephone when I came?
When Mary (was reading) the letter she (noticed) many spelling mistakes.
She (was going) to bed when suddenly she (saw) a mouse.
We (were sitting) down to dinner when the door bell (rang).
Mary’s grandfather (hurt) his back while he (was digging) in the vegetable garden yesterday.
While he (was sleeping), the doctor (arrived).

Питер проживал в приморском отеле в отпуске, когда встретил своего друга.
В то время как я обедал, солнце снова появилось.
С кем вы (разговаривали) по телефону, когда я пришел?
Когда Мэри (читала) письмо, она заметила много орфографических ошибок.
Она (ложилась) спать, когда внезапно она (увидела) мышь.
Мы (садились)  обедать, когда раздался звонок в дверь.
Отец Мэри повредил спину, когда он (копал) огород вчера.
Пока он (спал), врач (прибыл).

1. The first person whom Andrew SAW as he ENTERED was his old nurse. She WAS SITTING on the sofa. During the last five years she HAD greatly CHANGED and now LOOKED a very old woman.

2. She is going to read a letter she HAS just RECEIVED.

3. How long HAVE you BEEN WAITING for me? I am really very sorry.

4. Yesterday I MET a friend of mine whom I HAD NOT SEEN for a long time.

5. Ring me up at eleven o'clock, I WILL NOT BE SLEEPING YET

6. You WILL BE late for the concert if you DO NOT TAKE a taxi.

7. The sun SET a long time ago, and it BEGINS\BEGAN to get really cold.

8. When I CAMEhome yesterday, my sister HAD already RETURNED and WAS SITTING at the fireplace looking through some old photographs.

9. He HAD SMOKED three cigarettes and WAS LOOKING through all the books on the shelf, when at last he HEARD his friend's steps approaching the door.

10. He HAD just APPROACHED the door, when she ENTERED.

11. He HAS BEEN WRITING the composition for three hours and he SAYS he WILL soon FINISH it as he IS THINKING over the conclusion now.