Question

fill the blanks with appropriate form of verb. in 1918-19 there ____(be) a serious outbreak of flu. The virus _____(know) as Spanish flu and it _____(estimate) that it killed more than 20 million people. Recent research which ______(conduct) into the structure of this virus _____(shed) important light on this killer disease. The scientist conducting the research ____(use) viral DNA sequences from biopsies which ____(came out) from America soldiers _____( die) ​

Answer 1

Answer :

1) was

2) was known

3) estimated

4) conducted

5) has shed

6) used

7) came out

8) died

These are the answers.

Answer 2

Answer:1) was

2) was known

3)was estimated

4)conducted

5)shredded

6)used

7) came out

8) dead

Explanation: If a passage is in the past tense, then the whole passage must be answered in past tense.