Question

There are two verb tense errors in this paragraph. Correct them:

Indeed, whilst the Chinese allegedly strapped prisoners onto kites in the sixth century, and Elmer of Malmesbury was recorded as having
glided for more than an eighth of a mile before crashing and breaking both his legs, it was not until the start of the 1900s that scientific
attempts are made to get a man off the ground under his own steam. These bicycles-on-wheels might seem comical to today's aeronauts,
but in 1912 they are good enough to help Gabriel Poulain scoop a prize of 10,000 francs, having allegedly flown his contraption more than a
metre off the ground for distance of 10 metres.

Answer 1

"...it was not until the start of the 1900s that scientific attempts are made..." should be changed to "...it was not until the start of the 1900s that scientific

attempts were made..."

AND

"...but in 1912 they are good enough to help Gabriel Poulain scoop a prize of 10,000 francs..." should be changed to "...but in 1912 they were good enough to help Gabriel Poulain scoop a prize of 10,000 francs..."