Question

They ____________ the needy people _________ last three years.
i. have been helping , for
ii. have been helping , since
iii. has been helping , since
iv. have helping , since​

Answer 1

Answer:

have been helping, for three years

Explanation:

Answer 2

Answer:

1. they have been helping the needy people for last three years.

Explanation:

have a great day :)