Question 1

What is the difference between "oblivious to" and "oblivious of"?

Accepted Answer

Both forms exist in English, and many native speakers use them interchangeably. "Oblivious to" is the more common form in modern British English and the one most style guides recommend: "She was completely oblivious to the danger around her." "Oblivious of" is also considered correct and appears in some older texts and formal writing. Originally, "oblivious of" was the only accepted form, but usage has shifted over time and "oblivious to" is now standard. For examinations, either form is accepted, but "oblivious to" is the safer choice. The meaning is identical with both prepositions — completely unaware of something happening around you.

Question 2

How do I use "liable for" correctly?

Accepted Answer

"Liable for" has a specific legal meaning — it describes who must take financial or legal responsibility for something: "The manufacturer is liable for any defects in the product" means the manufacturer must pay if something is wrong. Do not confuse "liable for" with "liable to," which means likely to happen, often something negative: "The old bridge is liable to collapse" means it might collapse. This is an important distinction for C1 learners: "liable for" is about responsibility and consequences, while "liable to" is about probability. In formal writing and legal English, "liable for" appears frequently, and using it correctly demonstrates a strong command of register.

Question 3

Why is recall practice harder than multiple-choice for prepositions?

Accepted Answer

In multiple-choice exercises, seeing the options triggers recognition — your brain matches the adjective to the correct preposition from a short list. Recall practice removes this support entirely, forcing you to produce the preposition from memory. This is much closer to real communication, where nobody offers you three options before you speak or write. Research shows that recall practice strengthens long-term memory far more effectively than recognition tasks. If you can correctly type "liable for" without seeing the options, you are much more likely to use it correctly in an essay or conversation. For Cambridge C1 Advanced, the open cloze paper tests exactly this skill.

Adjective + OF, FOR & TO (Part 3 — Recall)

Quick Rule

Continue Practising

Prepositions of Time and Place Error Correction

In, On, At for Time

In, On, At for Place

-ed vs -ing Adjectives

Conditionals

Present Perfect