Какова роль малых предприятий в экономике ?

1) The referee stopped the match because one of the fans/......something on the pitch. 

a) was throwing b) has threw

c) had thrown d) has been throwing

2) A lot of Tolkien's novels ..... recently.

a) have been sold b) have sold

c) were sold d) are sold

3) Mark and his brother always iron their shorts.......

a) himself  b)theirselves

c)themself d) themselves

Приведите пример фонет. разбора (полного)

K+N2=

K+C=

Na+Cl2=

Na+HOH=

Na+HCl=

Опридилите какая из дробей ближе к 1 и сравните их. 4/5 или 5/6,  3/4 или2/3,  7/8 или 2/3, 9/10или99/100, 129/130или12/13, 5/6 или6/7.

2   Сравните 3/7 и1 , 5/2 и 1, 1 и 11/12, 12/11 и 1 3/7и 7/3,  сыну хочу помоч с домашкой