Combine the sentences using and or so that. Add a comma where necessary.

We should turn off air conditioners when we leave a room. We can save electricity.

A. Mathew

B. Karim

C. Lin

D. Sarah

A. gets

B. getting

C. will get

D. won’t get

A. If we will recycle more, we are able to protect the environment.

B. If we recycle more, we will be able to protect the environment.

C. If we recycle more, we are able to protecting the environment.

D. If we recycled more, we would protect the environment.

A. If we don’t control overfishing, it will damage marine life.

B. If we won’t control overfishing, it damages marine life.

C. If we don’t control overfishing, it damages marine life.

D. If we controlled overfishing, it would not damage marine life.

A. If you threw garbage into rivers and lakes, you would make them dirty.

B. If you will throw garbage into rivers and lakes, you’ll make them dirty.

C. If you throw garbage into rivers and lakes, you’ll make them dirty.

D. If you throw garbage into rivers and lakes, you make them dirty.

A. If we don’t stop polluting the environment, we’ll get more health problems.

B. If we won’t stop polluting the environment, we get more health problems.

C. If we don’t stop polluting the environment, we get more health problems.

D. If we didn’t stop polluting the environment, we would get more health problems.

A. If we stopped water pollution, we had enough food and water.

B. If we don’t stop water pollution, we don’t have enough food and water.

C. If we won’t stop water pollution, we won’t have enough food and water.

D. If we don’t stop water pollution, we won’t have enough food and water.