Use your dictionaries to explain thewords in bold. What part of speech is each (noun, adjective, verb, adverb)?​

Sir Walter Raleigh (was) an English traveller who (lived) in England in the days of Queen Elizabeth. He (sailed) across the seas to America in search of new lands. He (brought) to England two very important plants: the tobacco plant and the potato. When he (was) in America, he (learnt) to smoke from the Indians. When he (was) back in England, he (was sitting) one day in his room by the fire smoking a pipe. His old servant who (knew) nothing about tobacco or smoking, suddenly (came) into the room and (saw) the smoke coming out of his master's mouth. He (was) frightened: he (thought) Sir Raleigh (was) on fire. He (rushed) out of the room, (got) some water and (threw) it all over his master before Sir Walter (could) explain that he was simply (smoking). Sir Raleigh (brought) the potato to his country because he (wanted) the people (to learn) how (to grow) potatoes. He (said): "When the harvest (is) poor, there (will be) no breed and we (shall all be) hungry. You (will) never be hungry if you (grow) potatoes. But people (did not like) potatoes. Nobody (wanted) (to eat) them because nobody (knew) how (to cook) them."After many years a Frenchman (found) the best way of growing and cooking the potato. People (began) (eating) potatoes and (found) them good. Since that time more and more potatoes (have been grown) and (eaten) in Europe. The potatoes (have become) one of the most important and useful vegetable.

Dear Olga, ( можно использовать любое другое имя или просто friend)
How are you? I hope you are ok.  We have a great time last weekends, is not it? Well, as you know, i invited to me my friend Jenny, who lives in France.  Today i got a letter from her and she said that she is going to come in Moscow on summer holidays. I was so happy, when knew that! So, i would  like to ask you, what are sights really should  visited? Moscow is buatiful  and very big city, but  the matter is that she will come only one week. Of course,  we should be attend a Red Square. What would you advise in this situation? I really hope for your help! So, i had better go now as i  have got loads of homework to do. Teke care and  answer as soon as possible! 
All tte best,
Твое имя( Например, Alexs)