(а) Нарисуйте: модель вещества озона Оз, состоящего из трёх атомов кислорода (O);модель вещества аммиака NH3, состоящего из одного атома азота (N) и трводорода (Н​

Our two (a) babies are crying all the time.

No news (a) is good news.

(b) Flies usually fly not very high. (a fly - муха)

These potatoes weigh five (b) kilos.

I don't like going by car. If I have a chance, I always go on (a) foot.

What do you need these ( b) boxes for?

Those were the happiest days of our (a) lives.

Rock music of the 1970s is an extremely interesting cultural (a) phenomenon

Big (a) boys don't cry.

I prefer natural (c) dyes when I want to change my hair style.

It is rather dangerous to walk on (c) roofs after the rain.

Dentists recommend using ( b) toothpaste twice a day: in the morning and in the evening.

(b) Children are flowers of life.

The naughty kid likes throwing rotten (b) tomatoes at passers-by.

50 (c) tons of oil leaked out of the tanker into the sea.

There is no piano in the (a) bushes.

(a) Mice in our house are so annoying. We definitely need a cat.

My little son is afraid of grey (d) wolves ( волчков ) that come at night.