After__the Internet for two hours,she found some useful information.A.searching B.had searched

问题描述:

After__the Internet for two hours,she found some useful information.A.searching B.had searched
After__the Internet for two hours,she found some useful information.
A.searching B.had searched C.has searched D.searches
(选择)

选A after 为介词 后跟V-ing形式