Question

 (2011年厦门市质量检查)It is the test system，rather than the teachers，________is to blame for the students’ heavy burden nowadays.

A．who                             B．this

C．that                              D．whom

Answer 1

解析：选C。考查强调句型。本句强调的是主语the test system而不是the teachers，因此不能用who，只能用that。