2. Has he washed
this week?​

1. Sole proprietorship usually brings much profit. pres simp
2. The purchasing power of money always depended on supply & demand. past simp
3. Banks have developed greatly from their original position as places of security for valuables. pres perf
4. By May last year his business had involved big financial resources. past perf
1. Единоличное предпринимательство обычно приносит большую прибыль.
2. Покупательная денег всегда зависела от спроса и предложения.
3. Банки значительно эволюционировали из их первоначального назначения как места для хранения ценностей.
4. К маю года в его бизнес были задействованы значительные финансовые ресурсы.

Traffic jam is a huge problem nowadays. There is a heavy traffic both in small towns and in large cities. But there should be some solution.

I’ll start by saying that it is possible to make a separate road for public transport. People will change their cars for buses to avoid traffic jams. There will be fewer cars on the road, and that means that traffic jams will be fewer as well.

There is another good idea. It is necessary to encourage people to go by bicycle. For example: to reduce the price on them or make bicycle paths. Traffic jams will be less and the air will be much cleaner.

The traffic lights make most of the traffic jams. We may position the traffic lights which can be turned on at the right time, using the button. The order on the roads will be kept, and the traffic will be faster.

There are many alternatives how to improve the traffic on the roads. If you keep in mind some of them, life will become much easier and faster.