[Vocabulary] B2 First Test

[Waawe]

This is an excerpt from a B2 First test.

Many international visitors to Australia (0) ENTER the country through the city of Melbourne and(1) SET out on their tours from there. If you do so, it’s extremely (2) ……… that you will ever(3) COME across kangaroos or koalas in the city.


2
A unknown
B unclear
C uncertain
D unlikely

What is the correct answer for 2? The key says it is A, extremely unknown, I would go for unlikely or uncertain.

Thanks.

https://assets.cambridge.org/97811087/80148/excerpt/9781108780148_excerpt.pdf

 

[5jj]

A is incorrect. D is good.

 

[Waawe]

A is incorrect. D is good.

How about extremely uncertain? Would it also make sense?

 

[Yankee]

How about extremely uncertain? Would it also make sense?

IMO, "unlikely" would suggest that there is some evidence as to the possibility, whereas "uncertain" would suggest little or no evidence.

 

[SoothingDave]

How about extremely uncertain? Would it also make sense?

No.