25. The police aren’t sure how the incident happened. They say it an accident. A. might not have been C. couldn’t have been
B. might be D. could be

i it is b. but if its not sorry

what is the question ?

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.