Explanation:

Context: The sentence is discussing the likelihood or possibility of there being a famous shop in a particular location.

Options:
a) used to
b) should
c) ought to
d) would

Explanation of the Correct Answer:
The correct answer is option 'b' - should.

Explanation:
The modal verb "should" is used to express obligation, expectation, or probability. In this sentence, it is used to express probability or expectation.

Probability:
The sentence suggests that there is a high likelihood or expectation that there is a famous shop in the given location. The use of "should" implies that it is expected or probable for there to be a famous shop.

Example:
- There should be a famous shop here because this area is known for its shopping district.
- Given the popularity of this location, there should be a famous shop nearby.

Explanation of Incorrect Options:
a) used to
The phrase "used to" is used to describe past habits or states that no longer exist. It does not fit in the context of the sentence as it does not convey the idea of probability or expectation.

c) ought to
The phrase "ought to" is used to express moral obligation or duty. It does not convey the idea of probability or expectation in the context of the sentence.

d) would
The modal verb "would" is used to express conditional or future events in the past. It does not fit in the context of the sentence as it does not convey the idea of probability or expectation.