A human heart beats 72 times per minute .... average. ...

[ Prepositions ]

A human heart beats 72 times per minute …. average.

A. on

B. in

C. at

Select your answer:

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Imperative Sentence Coordinate Conjunction Comparative Adverb -ing &-ed Adjectives Cohesive Devices Do / Have / Can - Basic Questions Present Simple VS Continuous Nouns and Quantifiers Comparatives and Superlatives

Other quiz:

Grammar › View

She decided __________ (study) a little more.

A. to study

B. studying

C. ambos

D. study

Articles & Compound Nouns › View

She must have a _________to be allowed to get on an plane or a ship.

A. check-in

B. boarding pass

C. driving licence

D. jet lag

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