Напишите уравнения реакций, с помощью которых можно осуществить цепочку превращений веществ: Натрий=>Гидроксид натрия=>Сульфид натрия=>Хлорид натрия=>Сульфат натрия=>Сульфат бария

Fill in the gaps with MUST, CAN, MAY, CAN’T a) Helen’s dad is a fantastic cook! He knows so much about Chinese, Italian and French dishes. He ________ be a chef. b) Jim knows nothing about engines and cars. He ________ be a mechanic. c) Julian works for an international company. He says that no experience is necessary for his job and that he has to travel a lot around the city. He ______ be a massage boy or something like this. d) She wears awful make-up and has no taste in clothes. She ______ be a designer. e) This woman is always very neatly dressed and she knows how to get along with kids. She ______ be a teacher or a babysitter. f) Everyone in the hospital respects James. People say he is very good at cooperating on patients. He _____ must be a surgeon.

Вопросы 7 класса!!Ответь на вопросыв полном виде  (только на аглийском языке)..

1) Who is your favourite film actor/actress ?

2)What do you like about him/her ?

3) What film did he/she star in ?

4)What sort of roles does he/she usually play ?

5) What is the most interesting film where he/she starred in?

6) Whatdo you know about your favourite actor`s (actress`s) life?