.An inspiring teacher knows how to create an atmosphere for his students -----allows them to express themselves freely during the class.A where B which C what D who
问题描述：
.An inspiring teacher knows how to create an atmosphere for his students -----allows them to express themselves freely during the class.
A where B which C what D who
答
只能是 B.
which 引导的定语从句，修饰atmosphere.
what 不能做定语从句的先行词；who只人，where指地点，所以只能选A。
答
B 。对不
答
1.China's unmanned Shenzhou 8 paves the way for China to - a space3 D 4 C 5 B 这三个有把握,第三题 the+比较级指两者中较-的