问题
选择题
This is the best way I could think of _______ people getting into the dangerous areas.
A．stopping
B．to keep
C．to stop
D．keeping
答案
答案：C
考查非谓语动词。句意：这是我能想到的最好的办法来阻止人们进入危险地区。不定式做状语表示具体的将要进行的动过，keep是维持的意思，故选C。