51. What subject is the man teaching? (A) Physics B) Chemistry C) Biology D) Astronomy52. Does the teacher use different methods of teachingduring the lesson?A) Yes, he doB) No, he doesC) Yes, he doesD) No, he don't53. What is the teacher doing?A) Singing B) Conducting an experimentC) Writing D) Washing the flasks54. What does the teacher not use to protect himselffrom accidents?A) Gloves B) Goggles C) A robot D) A lab coat55. What are there on the shelves and desks?A) Vases B) Gadgets C) Test tubes and flasks D) Journals56. What (unusual) clothes is the teacher wearing?A) A sweater B) A jacket C) A lab coat D) A hat57. How many pupils are willing to answer?A) One B) Three C) All pupils D) Nobody58. How many people wearing glasses do you see?A) One B) Two C) Three D) Four59. You don't see this/these on the walls.A) A blackboard B) A clock C) Maps D) The periodic table60. How many chemical elements are written above theblackboard?A) One B) Three C) Five D) SevenLevel IV​

There are a number of holidays, which are celebrated in Great Britain every year.

One of them is, of course, the New Year's Day on the first of January. It is not so popular in England as in our country, but it is rather popular in Scotland. On that day people usually visit their friends and there is a lot of dancing and eating. In Scotland people bring a piece of coal for good luck in the New Year.

The next holiday of the year is St. Valentine's Day. It is on the 14th of February. People buy or make Valentine cards and send them to the people they love.

In March there is Mother's Day. All the children and adults, come to their mothers on that day to express their love and gratitude.

In April there is Easter. At Easter children eat chocolate Easter eggs. Sometimes parents hide them in the house or in the garden and children have to look for them.

In June there is Father's Day. On Father's Day children give or send their fathers and grandfathers cards and presents.

On the 31st of October there is a Halloween. They say ghosts and witches come out on Halloween. People make lanterns out of pumpkins. Some people have Halloween parties and dress as witches and ghosts.

The 25th of December is Christmas Day. It is one of the people's favourite holidays. People put Christmas trees in their houses and decorate them. There are beautiful Christmas decorations in the streets. On Christmas Eve everybody puts the presents under the Christmas tree. People say that at night Father Christmas puts presents into the stockings which children usually hang above their beds. The traditional Christmas meal is roasted turkey and Christmas pudding.