admit + open avoid + use manage + fix offer + help promise + be seem + be keep + crash suggest + use
When my friend's computer 1 kept crashing all the time, I 2___ him. The problem 3___ a virus, so I 4___ some anti-virus software, but he didn't have any. He also 5___ attachments from people he didn't know. I 6___ the problem, and he has 7_____ more careful in future. In particular, he'll 8____ the internet without proper seciurity.