19. --- Could you tell me how the sea sand es about ?
--- Sea waves dash against the rock. In this way , the sea sand .
A. es into use
B. es into office
C. es into effect
D. es into being
网友回答
A. es into use
B. es into office
C. es into effect
(答案→)D. es into being
解析：可联系客服索取。