Which tense is used to express that an action started in the past and is continuing till now?
A. present perfect
B. past perfect
C. past continuous
D. present perfect continuous
Select your answer:
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Muscle Anatomy Maximal Oxygen Consumption (VO2 Max) Physical Pharmacy Carbohydrates Microorganisms, Health and Diseases Neurology Diet Reproduction in Human Beings Soldiers of Defense Organ Systems Disease Medicine on the Western Front Cell Diversity - Organization, Tissues, Plants and Animals Enzymes and Movement of Substances Pathology Introduction Cell InjuryOther quiz:
CRISPR and Sickle-Cell Disease › ViewHow many participants were involved in the clinical trial of exa-cel?
A. 9
B. 19
C. 29
D. 39
Nutrition › View
Which of the following describes therapeutic foods?
A. Prepared foods that provide calories and nutrients
B. A practical food source that is useful in the fight against malnutrition
C. A high-energy food that is delivered in an accessible package
D. All of the answers are correct