She has a gift for creating an atmosphere for her students________ allows them to communicate freely with each other.
A．which
B．where
C．what
D．who
She has a gift for creating an atmosphere for her students________ allows them to communicate freely with each other.
A．which
B．where
C．what
D．who
答案：A解析：which引导定语从句时，在从句中作主语或宾语；where引导定语从句时，在从句中作状语；what不能引导定语从句，其前不能有先行词； who引导定语从句时，其先行词应是表示人的单词。由于空后的从句缺少主语，所以排除B项，可以考虑A项；由句子中的先行词an atmosphere可以排除C项和D项。句意：她有为学生创造氛围的天赋，这种氛围使得学生们彼此能够自由地交流。故选A项。