Question

look at the text below. if there is an error with subject - verb agreement, select the incorrect verb and type it correctly. otherwise, submit the text without making any changes.
although several developing countries have made recent progress in
supplying safe drinking water to their citizens, many around the world
still face water - related diseases.

Explanation:

We check the subject - verb agreement in the given text. The subject "many (developing countries, implied)" is plural, and the verb "face" is also plural. The other verbs "have made" and "face" are in agreement with their respective subjects. So there is no error in subject - verb agreement.

Answer:

Although several developing countries have made recent progress in
supplying safe drinking water to their citizens, many around the world
still face water - related diseases.