Question

The Ozone Layer is a “blanket” around the Earth. It protects (0) ___us___ from the sun’s ultraviolet UV rays. The problem is that there is a hole in the Ozone Layer over Antarctica. Humans made the hole (1) ________ people use some products (2) ________ have terrible effects on the ozone.
Scientist says that this year the hole breaks all records: it is the (3) ________ in history. It is 27.7 million km2. Why is this hole (4) ________ big?. One reason is that the clouds over the South Pole carry chlorine (CI) and that gas slowly eliminates the ozone.
Now people are thinking more about the ozone. They are (5)________ other substances and in some years, (6) ________ will remember what the “ozone hole” was.


0. a. ours b. us c. our
1. a. while b. but c. because
2. a. which b. who c. where
3. a. large b. larger c. largest
4. a. such b. so c. too
5. a. use b. using c. used
6. a. nobody b. anybody c. somebody

Answer 1

0. a. ours b. us c. our

1. a. while b. but c. because

2. a. which b. who c. where

3. a. large b. larger c. largest

4. a. such b. so c. too

5. a. use b. using c. used

6. a. nobody b. anybody c. somebody

Answer 2

Respuesta:

(0) us
(1) because
(2) which
(3) largest
(4) so
(5) using
(6) nobody