Fill in the blank by selecting the appropriate phrasal verb from the given options.
Sushmita and Reshma always ___________ the engine of their brother’s motorbike.

The correct option to fill in the blank is (b) monkey around with.
The phrasal verb “monkey around with” means to tamper with or play with something, especially without a serious purpose.
In the context of this sentence, it means Sushmita and Reshma are always fiddling or experimenting playfully with the engine — making it the most suitable choice.
Grammatical Rule Used:
Phrasal verbs are often idiomatic and must be matched contextually based on meaning rather than direct word-for-word translation.
Meanings of the other options:
· (a) make good
English: to succeed or to compensate for something
Hindi: सफल होना या किसी नुकसान की भरपाई करना
· (c) pull through
English: to recover from an illness or survive a difficult situation
Hindi: कठिनाई से बाहर आना या ठीक हो जाना
· (d) narrow down
English: to reduce a list or group to fewer choices
Hindi: विकल्पों की संख्या सीमित करना