Question

9. Put the verbs in brackets into an appropriate tense
In the last few years there (1) has been (be) a marked change in
To our attitude towards environmental issues. It (2)_
(start) with
Io scientists revealing that a hole (3)
- (begin) to develop in the ozone
a layer above the Arctic Circle; when people (4)-
(start) to notice
changes in the climate , it (5)
(become) obvious that there (6)
(be) a serious threat. Those of us who (7)
lever/ use) an aerosol spray will presumably think twice before eusing
one again. And what (8)
happen to all that nuclear waste
we have produced? Presumably most of it (9) - ( be/dump) into
the sea , but the number of protesting voices (10)- (increase)
steadily year by year.
​

Answer 1

Răspuns:

1. has been

2. started

3. began

4. started

5. became

6. was

7. ever used

8. happened

9. has been dumped

10. increased

Explicație: