Perfect tenses For this section of the test, read each sentence carefully, then fill in the blank spaces with the correct form o

Question

4 years ago

13

Perfect tenses For this section of the test, read each sentence carefully, then fill in the blank spaces with the correct form o

f the verb given in the parentheses (...). Since the middle of the 20th century, scientists (find) have found ______ cures for many diseases. However, so far no one (discover)______

English

2 answers:

Misha Larkins [42] · Answer 1 · 2021-12-19T17:21:29+03:00

Misha Larkins [42]4 years ago

4 0

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)

frosja888 [35] · Answer 2 · 2021-12-19T18:23:35+03:00

frosja888 [35]4 years ago

3 0

Answer:

Since the middle of the 20th century, scientists (find) have found ____found__ cures for many diseases. However, so far no one (discover)__ discovered