Institution: SONALI BANK LTD Exam: Sonali Bank Ltd - Sub-Assistant Engineer (Mechanical) - 30.09.2016 ||
Topic: Preposition, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The correct answer to fill in the blank in the sentence "She prides herself ____ her beauty" is "D) on." This is due to the way the verb "pride" is typically used in English. The phrase "to take pride in" or "to pride oneself on" is a common expression that conveys a sense of self-respect, satisfaction, or esteem regarding a particular quality or achievement.

Using "on" in this context indicates that she derives a sense of self-worth or happiness based on her beauty. This construction emphasizes the connection between her identity and the quality she appreciates. For example, saying she "prides herself on her beauty" implies that her beauty is a significant part of how she sees herself and values her identity.

In contrast, the other options—"from," "to," and "of"—do not fit grammatically or semantically. "From" would imply an origin rather than a source of pride, "to" is an incorrect preposition in this context, and "of" does not convey the same sense of personal connection or esteem. Therefore, "on" is the only option that accurately completes the sentence and conveys the intended meaning.