Афанасьева, Михеева, Баранова, 7. Учебник. Unit 5. Step 2

1) Jane is playing, has she been playing? she has been doing it, she came;
2) have you had; we have had it, we have been living, Bob finished;
3) has always wanted, has been here, he has been doing.

1d, 2f, 3c, 4e, 5a, 6b.

1) John spends a lot of time studying geography.
2) Max is not happy living at home.
3) At the university students get important information about nature.
4) Mr Wilson has a lot of cars in his garage.
5) Mr Green has a lot of influence on his students.
6) There were a large/great number of people on the list whose names I didn’t know.

A.
ecology, group, isolation, organism, energy, natural, person, ecologist, information, modern.

1) have you owned, have bought;
2) has been playing;
3) have been skiing;
4) have known;
5) have been phoning, has been doing;
6) have been, have visited;
7) has been studying.

1) on;
2) —, of;
3) in;
4) in, without;
5) —;
6) of;
7) to, of.

1) study;
2) number;
3) environment;
4) behaviour;
5) influence;
6) survive;
7) nature;
8) person;
9) natural.