Answer:
Since the middle of the 20th century, scientists <u>have found</u> cures for many diseases. However, so far no one <u>has discovered</u>
Explanation:
those are the perfect tenses for (find) and (discover)
Answer:
The flashback often happens when things are going wrong for Ishmael. When he starts to feel sad, he tries to remember the happy moments in his life. Ishmael would rather remember the good moments because it gives him the strength to continue his life.
Mark me brainliest pls
Answer:
we have to see the topic first to answer