1. London … is the capital of England has a population of 10 million people.
2. I like to visit places … nobody else goes.
3. I spoke to the woman … daughter I know.
4. In London … he studies he has spent 3 years already.
5. Elen is the girl … lives next door.

Complete the sentences with the words have to, should or may.1. We …think about the nature.2. It… be because air pollution.3. People…stop polluting of the Earth.4. We…take care about our planet.5. You … be an environmental activist.

1.which2.where3.whose4where5.who