Конечно! Вот исправленные и дополненные варианты слов, подходящих по грамматике и смыслу текста.
Felix d'Herelle
Felix d'Herelle was a French microbiologist. He was born in Paris, France, in 1873. He travelled extensively from his teens and moved to Canada at the age of 24, where his interest in microbiology began.
Initially, d'Herelle worked in Guatemala, then in Mexico, where he found a bacteria that infected locusts. He began working on this in Tunis for the Pasteur Institute and observed **19. some (SOME) — здесь нужно слово "some", так как речь идет о наблюдении некоторых (части) бактерий или процессов, поэтому правильное слово — «some».
At the Institute in Paris, d'Herelle continued his work on the bacteria killer and identified bacteriophages for the **20. first (ONE) — нужно слово "first", так как речь идет о первом открытии. Слово "one" в данном случае не подходит, правильно — "first".
From there he moved to Leiden, Holland, and then to Alexandria, Egypt. He **21. taught (TEACH) at Yale University and worked in the USSR before returning to Paris in 1938 to develop phage therapy. — глагол "taught" в прошедшем времени, так как прошлое действие.
Despite numerous nominations for the Nobel Prize, d'Herelle never received it but continued his work until he died in 1949.
Travelling by plane
Air travel **22. has expanded (EXPAND) enormously since the 1950s when international air travel was a luxury enjoyed by a few wealthy people known as the "jet set". — в данном случае правильно использовать Present Perfect (has expanded), так как речь идет о процессе, начавшемся в прошлом и продолжающемся до настоящего.
Today, flying **23. is (BE) often the most economical way to travel, as well as the quickest. — глагол "is" (настоящее время, настоящее простое), так как речь о текущем состоянии.
The world's busiest airport is Hartsfield-Jackson International Airport in Atlanta. So, if you are leaving from this airport, you had better **24. arrive (ARRIVE) in advance to get on the plane in time. — инфинитив без "to" после модального выражения "had better".
Если потребуется, я могу помочь с объяснением выбора конкретных слов или с дополнительными заданиями!