Aaaaaaa6re5cv5rv6ve5were5tr6y5y67 es de el libro O2 student's book?

A. -

1.

- boils

2.

- rust

3.

- freezes

4.

- floats

5.

- melts

B.

-

1. - I will fix the plumbing tomorrow if I have time

2.

- If we don't call a plumber, we will have a flood

3.

- If we fix the leaky faucet, we won't waste a lot of water

4.

- We won't use so much water if we take shorter showers

C.

-

1. - If we plant more trees, we could do more to fight climate change

2.

- Goverments should make better laws to protect the environment

3.

- Fertile land might become desert due to lack of rain

4.

- People should use their car only when necessary, and walk more

5.

- The recent oil spill may have terrible effects on ocean wildlife

D.

-

1. - insomnia

2.

- sleeping

3.

- over - the - counter

4.

- prescription

5.

- health

6.

- consult

7.

- medication

E.

-

1. - should

2.

- sore

3.

- headache

4.

- shouldn't

5.

- might.