Question

What makes our earth sick?
- Steel cans make the earth sick.
- Shampoo makes the earth sick.
- Empty bottles make the earth sick.
- Plastic bags make the earth sick.
- ___________ make/makes the earth sick.

(Are the answers all grammatical? What other expressions can we use in the blank? Would you name them? Thank you.)

Answers

Yes, the answers are all grammatical.

Badly maintained car engines...
Unrecycled paper...
Freon leaks...

Other teachers may have further ideas.

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