Select the appropriate idiomatic expression from the options to replace the…

Concept: An idiom-replacement item tests whether a fixed phrase carries the exact same core meaning as the underlined word, not merely a loosely related theme. The underlined word "Usually" is a frequency adverb meaning "in most cases, generally, normally, habitually."

Application: In the sentence, "Usually I get up at 5 around the year" states a habitual, recurring action. Among the four options, "as a rule" is the standard idiomatic equivalent of "usually" -- it means "generally, normally, in most cases." Substituting it gives "As a rule, I get up at 5 around the year," which preserves the original meaning exactly.

Cross-check: each distractor carries a distinct sense that does not express frequency, confirming the choice by elimination:

• "at any rate" means "in any case, regardless" -- used to set aside or concede other points, not to state how often something happens.

• "at all events" means "whatever happens, in any case" -- used to assert that something will hold true no matter the circumstances, not to describe a habitual pattern.

• "at all costs" means "no matter the price, effort, or difficulty involved" -- used to stress that a goal must be achieved regardless of consequence, not to indicate frequency.

• "as a rule" means "usually, generally, normally" -- the only phrase among the four that expresses habitual frequency, matching the underlined word exactly.