For the necessity of smuggling, Customs may interrogate the suspect, witness and other persons concerned.
Asuppressing正確答案
Bsupposed
Csupplemental
Dsupporting
答案與詳解
suppress 意為「壓制、查緝、取締」,suppressing smuggling 即「查緝走私」,是海關法與關務英文的固定搭配語,語意與文法(for the necessity of + V-ing)皆正確。
