Present perfect continuous
​

прошедшее: кушали,читал,одевалась

настоящее: делаю,смотрит,рисуют

будущее: будут гулять,сделаю,проиграет

true,  students can buy bottles of water

2.  gas consists of a number of particles moving at a tremendous speed.  a)  правое определение

3.  while melting the snow keeps the same temperature.  d)  обстоятельство. 

5.  being started in time, the preparations for the test are over.  d)  обстоятельство. 

1.  the question being too difficult, no one could answer it.  c)  независимый причастный оборот;  

7.  an electronic computer forms a complex device when viewed as a whole.    d)  обстоятельство

  4.  operating characteristics of goods are usually given in graphical forms.b)  левое определение (действительный залог);  

the tiger.

tiger is the biggest among all big cats. length of the body-150-300 sm. weight for a 400 kg. it's has very beautiful colouring of a wool. there's dark cross-section strips which are take one's share on a red background. it's cunning and crafty predator. it's lives among reeds and bushes, where colour of the animal merges with the environment. tiger lives in the hottest(tropical) countries of asia