The correct answer is pair
The correct sentence is C, because 'driven' is the past participle, part of the present perfect tense. Present participle would be 'driving', it has -ing form, whereas B is not correct because 'helped' is just past, not a past participle.
Explanation:
the customary weapon by which free governments are destroyed.”
He seems worry because he doesn’t want that to happen.
why is this important ?
There’s this website called Megan dictionary or something like that it helps a lot