问题
选择题
After being questioned by the police , he admitted ____in the supply of drugs over a 20-year period.
A． to be involved
B． being involved
C． involved
D． been involving
答案
答案：B
考察admit用法。Admit doing sth承认做某事；be involved in参与…;结合句意可知B正确。句意：被警察询问以后，他承认在20年期间里参与了毒品的运输。