Дана прямоугольная трапеция ABCD с большим основанием AD,величина угла A равно 90 градусам.Найдите длину высоты трапеции,если:AD=25 см,BC=CD=13 см.

1. Сomplete the sentences with the correct from of the word in brackets.

   1. She is a perfect __________(dance). She was invited dance at the Bolshoi Theatre.

   2. Nobody likes going to the _________ (dental) although nowadays it is painless.

   3. I think she will be a good ________(nursery). She is very kind and helpful. 

   4. He is a qualified ____________(programme). He spends all his time in front of the computer.

   5 I am hopeless at writing compositions. I have no chance of becoming a _________ (journal).

   6. It's not always easy to earn a living as an __________ (art)

2a.  Match the words in the columns to from phrases describing skills and  abilities.

   1. give clear                                  a) hours

   2. have good/ bad physical       b) explanations 

   3. work long                                 c) co-ordination

   4. have good/ bad                      d) concentration

   5. have an ear for                       e) music

2b. Use the expressions from Ex.2a to complete the sentences.

1. You stand no chance of being good at singing unless you _________________

2. To me a good teacher is a person who can ____________________________

3. I have never been able to_________________________ as i get tired very quickly

4. Although I __________________________________________ , I like dancing very much.

5. To be a taxi driver you need to _____________________________________