1. ... in my class knows him.
a) All b) All pupils c) All the pupils d) Everyone
2. His hands are dirty. He ... the car.
a) repaired b) repairs c) has been repairing d) will repair
3. By the time I came she ... a cake.
a) cooked b) cooks c) will cook d) had cooked

- is the first cake tasty?

- yes, it is.

 

- was the fourth lesson difficult?

- yes, it was. 

1. what is the english scientist famous for? 2. what was his first scientific discovery devoted to?   3. what layer did the scientist discover in two years?   4. why was edward appleton given an honourable  title of a knight? 5. what branch of the science in nobel prize was appleton awarded?