Write what parts of speech the following words are.
to produce
produce
producer
product
production
produced
producing
to calculate
calculation
calculator
calculated
calculating
calculating
machine
to manufacture
manufacture
manufacturer
manufactured
manufacturing
manufacturing
industries
to quote
quoted
quoting
quotation
quotable
quotation
marks
2) No, I dont. I learn it at home too.
3) Yes, it is. We can learn English by online-lessons or in English-speaking countries.
4) Yes, I have. I've learnt it at English courses and on the Internet.
5) Yes, I do. I think so.
6) I think you have to do it all your life.
7) We are learning it because English is going to become the most widely spread language in the future. It is interesting and useful.
8) Yes, I do. If we want to travel somewhere we have to know English or if we want to study in different countries this language can help us too.