Answered

Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

1. The fire ___ due to faulty insulation. But, for the time being, we cannot exclude a terrorist attack.
A. may have started
B .might be started
C.could start
D. must have started
2. They _____ to the concert together because Jane had agreed to baby-sit for them.
A. could go
B.could have gone
C. were able to go
D. can go

I don't know the difference ''could '' and ''were able to go ''. Can you help me??​