1. No do not borrow because that is an item you want but don’t need
2. Yes would borrow because reliable transportation is something you need for work
3. No would not borrow because you do not need a brand new pair of shoes you seen
4. No would not borrow because you do not need a skateboard
D. clear
an adjective describes a noun and clear is describing the waters
B
I think it should change into “The test subject will be observed for the next few days.”