Question

what does the word improbable mean in this sentence? our teacher thought it was improbable that we would go on a class trip this year. doubtful disbelieve rarely doubting

Explanation:

The word "improbable" means not likely to happen. "Doubtful" has a similar meaning of being uncertain or not likely. "Disbelieve" is a verb, while "improbable" is an adjective. "Rarely" means not often, which is different in meaning. "Doubting" is a present - participle form of the verb "doubt", not a synonym for "improbable".

Answer:

A. doubtful