His brother and sister in the living room

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);  

i don*t like school uniform. i prefer  a free style in clothes. because i think that it*s very comfortable