Ответ:
1.We use as + noun to talk about the role or purpose of a person or thing.
2.We use like + noun to say that two people or things are similar.
3.We use so +adjective + that and such a +noun phrase +that to talk about to result.
4.We can use because, as and since to give a reason or an explanation.
1reads.does.writes
2is playing.plays
3has lived
4had returned.came(у тебя ошибка)
5was discussing
1. The Prime Minister is the head of the British Government.
5. My mother every morning has to leave the house at six-thirty.
4. We sometimes have to wear goggles in chemistry classes.