Answer:
No, this is not right. It should be "Their holiday had to be cancelled because of a fire at the hotel."
Explanation:
If you can change the whole sentence though, it would sound best as "Their holiday had to be cancelled due to a fire at the hotel."
Their = something they own
They're = they are
There = a place
Answer:
a. chain communication network is most appropriate.
Answer:
Purchases of government bonds from banks
