which one is correct according to the passage?
A. For the high school students in the 1910s, their mouths were mostly flat
B. The high school students in the 1910s were afraid of smiling because of the cultural differences
C. The high school students in the 1910s couldn’t smile much at all.
how to understand "Etiquette codes of the past demanded that the mouth be carefully controlled; beauty standards likewise called for a small mouth" from Historian Christina Kotchwmidova?
A. It explains the differences of the aesthetical standard between the past and the present
B. It means those who have small mouths are very popular and important in their countries.
C. It shows the significance of cultural forces.
what does the author mention according to the words from these professors?
A. How to smile in front of the lens
B. What we should pay attention to when taking photos
C. Why to smile when taking the photos
resonate
A meaning that is not expressly stated but can be inferred
B. To vibrate and produce a deep, strong sound
C. Be received or understood
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