customers, the Hong Kong pany said the amount of the chemical in the shampoo products wouldn’t harm people’s health.
A. Calming
B. Having calmed
C. To calm
D. Calmed
网友回答
A. Calming
B. Having calmed
(答案→)C. To calm
D. Calmed
解析：考查非谓语动词。句中to calm customers为了安慰顾客，表目的性，选C。