Did you paul at the hospital yesterday? meet, met

did you meet paul at the hospital yesterday?

поскольку частица did «проглатывает» окончание -ed, -d, и неправильную прошедшую форму

did you meet paul at the hospital yesterday?

meet - неправильный глагол.

пишется в предложении первая форма, так как на себя эту работу берёт глагол did.

Ihor is a good friend.he is always ready to help everybody who needs. my friend knows a lot of interesting facts about music, famous people and history. my friend. i am so happy to tell you about my friend.we have been friends for some years.my friend's name is olha.olha is 16. she is tall and slim, with dark eyes and black hair. she is fond of sports. that's why olha can walk all day long and never feels tired. she is sociable. she speaks little but she doesn't talk at random. my friend is good-hearted and has a sense of humour. she knows a lot of funny stories and she always tells them. she likes music very much.we have much in common. as for music our tastes differ: i am keen on pop music, but olha enjoys rock. in the evening we go for a walk, listen to music, look through fashion journals. on the days off we go to the parties, museums, theatres. she is very kind and sweet. i like her very much and i want to be her best friend forever.

1. the puplwood chips are cooked in chemical solution and then the fibers are separeted  mechanicaly. present simple passive, to be cooked, to be separeted.древесная пульпа кипятится в растворе , затем волокна разделяются механическим способом.2. this plant will  install a new press section. future simple active, to install.этот завод установит новый пресс.3. the wet paper sheet is dewatered in the press section of the machine. present simple passive, to be dewatered. сырой бумажный лист сушится в прессе станка.