16. Correct each sentence. . 1. May I give you piece of advice? 2. Who gave you these advice? 3. What a useful advice! 4. I have never heard such a useless advice. 5. The teacher gave me three advice. 6. She followed your advice, did she? 7. Shall we follow those advice? 8. You must take his advise. 9. He always take my advice. 10. That's a very good advice. 11. Nobody like to get advice.

Achievement – achieve (достижение – достигать)
resistance – resistant (сопротивление - стойкий, прочный)

celebration – celebrate (празнование – праздновать )
difference – different (различие – различный)
city – citizen (город - горожанин; горожанка, городской житель)
nation - national – nationality (страна, народ - народный, национальный - национальность)
measure – measurement (измерять - измерение)
develop – development (развивать, разрабатывать – развитие, разработка)
act - active – activity (действовать – действующий – деятельность )
graduate - graduation - undergraduate - post – graduate (оканчивать – окончание – студент - аспирант)
educate – education (обучать; давать образование – образование)
govern - governor –government (управлять - правитель, тот, кто управляет – правительство)

  2)
changeable - меняющийся, непостоянный, изменчивый, неустойчивый
convertible - трансформируемый, превращаемый; изменяемый
breakable - ломкий, хрупкий
comparable - сопоставимый, соизмеримый
desirable - желанный, желательный
profitable - прибыльный, выгодный, доходный, рентабельный
readable - хорошо написанный, интересный, чёткий; удобочитаемый
comfortable - уютный, удобный
respectable - почтенный; респектабельный; приличный
expectable - ожидаемый, вероятный

1) Do you have to work on Sundays? 2)What must he do? 3) You mustn't keep all money in one place. 4) Where will we have to wait them tomorrow? 5) Must I sing anything right now? 6) Didn't she have to warry when she met him?7) Will I have to call him tomorrow? 8)He must take part in the conference. 9) Were we to meet at 10 p.m yesterday? 10)Do I need to call him back? - No, you don't/ 11)When is the train to arrive? 12) He didn't  have to take part 13) When is the lecture to start? 14)Will he have to take History exam in may?15) I can't believe it.16) My brother could read when he was 5. 17)They couldn't... 18) You may drive.