She has been the principal of the school ¾ the last five years.

ক. during

খ. for

গ. to

ঘ. since

উত্তর: for

ব্যাখ্যা: Structure Example during: Subject + has/have been + Object + during + a specific event/period of time. She has been the principal of the school during the last five annual meetings. for: Subject + has/have been + Object + for + a period of time. She has been the principal of the school for the last five years. to: Subject + has/have been + Object + to + a destination/direction. She has been to the school every day. since: Subject + has/have been + Object + since + a specific point in time. She has been the principal of the school since 2019.

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