1. Fill in: chain, atmosphere, Reserves, polar, polluting, habitat. One word is extra.
I) We have to stop (polluting) the environment.
2) At one of our many National Nature (Reserves) you can meet rare species of plants and animals.
3) The owl's natural (habitat) is in the forests of the Northwest.
4) The planet's (atmosphere) cannot support human life.
5) Life in the planet's (polar) regions can be incredibly difficult.
2. Complete with the Present Perfect Continuous form of the verb in brackets.
1) Tom (has been watching) TV all day.
2) How long (has she been learning) French?
3) They (have been arguing) since yesterday.
4) (Have you been living) here long?
5) I (have been waiting) for you for half an hour.
3. Write the correct question tag.
1) You don't take sugar in coffee, do they?
2) He arrived late, didn't he?
3) It's time to go, shall we?
4) Your parents can help, can't they?
5) Linda wasn't dancing at the party, was she?
4. Choose the correct answer. I) I can't make c) out the meaning of this poem.
a) up
b) for
c) out
2) She wanted to make up b) with me after that quarrel.
a) to
b) with
c) out
3) Where does Jake …a) live?
a) live
b) leave
c)leaf
4) I …b) have to wear glasses, My eyes aren't good.
a) have
b) have to
c) don't have to