I will join you if I ... free.
a) am
Differences between transport in Britain and in Russia:
1)Vehicular traffic-right-side in Britain,left-side in Russia. The right wheel in any kind of cars in UK,left wheel-in RF.
2)In Britain do not use trolleybuses or tramways.
3)Double-deck bus- in Britain, single-deck bus-in Russia.
Similarities between transport in Britain and in Russia:
1) The same system of underground:the metro in Russia,the underground(tube) in Britain(only in London).
2) Public transport-bus,suburban electric train,air traffic / transport.
3) Similarity of rule of the road.
Бумажный змей.................
Did you visit your parents yesterday?
Did you visit your parents or your granny yesterday?
Yesterday I visited my parents, didn't I?
Who visited your parents yesterday?
When did you visit your parents?
Did Nina work 7 hours a day?
Did Nina work 7 or 8 hours a day?
Nin worked 7 hours a day, didn't she?
Who worked 7 hours a day?
Why did Nina work 7 hours a day?