Difficulty: Easy
Correct Answer: have been actively safeguarding
Explanation:
Given data
Concept/Approach
Use present perfect progressive (have been + V-ing) to show continued activity up to the present: "have been actively safeguarding".
Option analysis
B. "have been actively safeguarding" → correct tense/aspect and adverb placement. ✔A/C/D → ungrammatical or awkward prepositional structures; not idiomatic.E → keeps the error.
Corrected sentence
"The courts have been actively safeguarding the interests and rights of the poor."
Common pitfalls
Avoid inserting "to" after are unless forming a passive infinitive construction (not needed here).
Final Answer
have been actively safeguarding
Discussion & Comments