Answer:
the answer to the query us best.
1a. (advocate)
1b. (exploit)
2a. (innovative)
2b. (hub)
3a. (indebted)
3b. (spearhead)
4a. (estimate)
4b. (documentary)
In the past couple of weeks nothing interesting has happened.
C.A terrible slayer of life
Notes :
Give Me The Brainliest please
