Clozed texts

11. The Ozone Layer is a “blanket” around the Earth. It protects (11) ______ 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 (12) ________ people use some products (13) ________ have terrible effects on the ozone.

12. Number 11 is

• ours

• us

• our

11. The Ozone Layer is a “blanket” around the Earth. It protects (11) ______ 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 (12) ________ people use some products (13) ________ have terrible effects on the ozone.

12. Number 12 is

• while

• but

• because

11. The Ozone Layer is a “blanket” around the Earth. It protects (11) ______ 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 (12) ________ people use some products (13) ________ have terrible effects on the ozone.

12. Number 13 is

• which

• who

• where

Scientist says that this year (14) _____ hole breaks all records: it is the (15) ________ in history. It is 27.7 million km2. Why is this hole (16) ________ big?. One reason is that the clouds over the South Pole carry chlorine (CI) and that gas slowly eliminates the ozone.

Number 14 is

• one

• a

• the

Scientist says that this year (14) _____ hole breaks all records: it is the (15) ________ in history. It is 27.7 million km2. Why is this hole (16) ________ big?. One reason is that the clouds over the South Pole carry chlorine (CI) and that gas slowly eliminates the ozone.

Number 15 is

• large

• larger

• largest

Scientist says that this year (14) _____ hole breaks all records: it is the (15) ________ in history. It is 27.7 million km2. Why is this hole (16) ________ big?. One reason is that the clouds over the South Pole carry chlorine (CI) and that gas slowly eliminates the ozone.

Number 16 is

• such

• so

• too

Now people are thinking more about the ozone. They are (17)________ other substances and in some years, (18) ________ will remember what the “ozone hole” was.

Number 17 is

• use

• using

• used

Now people are thinking more about the ozone. They are (17)________ other substances and in some years, (18) ________ will remember what the “ozone hole” was.

Number 18 is

• nobody

• anybody

• somebody