There are two verb tense errors in this paragraph. correct them: up until recently, the history of human-powered flight was not improved much since the ancient greeks write about icarus flying too close to the sun and melting the wax that held his feathers on.

Up until recently, the history of human-powered flight was not improved much since the ancient Greeks wrote about Icarus flying too close to the sun and melted the wax that held his feathers on.

Explanation:

The two corrections made are: wrote instead of write and melted instead of melting since we are talking about the past, we have got to use simple past tense instead of present continuous tense.

The general format of simple past tense is

Subject + verb + -d, -ed, -ied  or irregular form + rest of the sentence.

lab rats that ate more artifical sweeter gained more weight than those who ate sugar and they had “lower levels of a hormone called glp-1, which affects how full we feel.”

i remember a kid from africa moved to our school and she didn't speak no english. well she did but it was very limited but all the kids including me would ask her question like has she ever hunted a elephant or ever been hunted by a lion. to us she was so interesting even thought she was ordinary but by the fact she was from a different country we thought things were different. (honestly i asked her if she lived in a mud house on the savanna.) do i feel bad about approaching her yeah but do i feel bad about asking her question no because i would have never found out all the cool things about africa that aren't true