Author: Zabeehullah

Explanation: "At" is used to indicate a specific location or point in space, such as "at the party."

Explanation: "Open on" is a phrase used to indicate receptiveness or willingness to consider something, like "open on accepting new ideas."

Explanation: "Dependent on" is a phrase used to indicate reliance or need for something, like "dependent on external funding."

Explanation: "Since" is used to indicate the starting point of a period, such as "since 2010."

Explanation: "On" is used to specify a particular day, such as "on New Year's Eve."

Explanation: "In" is used to indicate being inside an enclosed space, such as "in the desk."

Explanation: "In" is used to indicate being inside a general area, such as "in a quiet neighborhood."

Explanation: "On" is used to specify a particular day, such as "on Christmas."

Explanation: "At" is used to indicate a specific location or point in space, such as "at the restaurant."

Explanation: "Centered on" is a phrase used to focus attention or revolve around a particular theme or topic, like "centered on a love triangle."

Explanation: "In" is used to indicate being inside a general area, such as "in a beautiful house."

Explanation: "Confident in" is used to express self-assurance or belief in one's abilities, like "confident in her chances of success."

Explanation: "In" is used to indicate a specific period or month, such as "in July."