I have a doubt on this one.Please help me out
Michael lives on a busy street.There/It must be very noisy.
Someone told me that 'it' is the answer but I would like to know why. I agree that "It" is the correct choice.
Although 'There must be very noisy.' would be understandable, I don't think that is commonly said, at least not where I am.
The following are commonly said:
1...'It must be very noisy.' ("It" = the busy street)
2...'It must be very noisy there.' ("It" = the situation/conditions)
The comments in brackets are my interpretation of the difference between 1 and 2.