Question

Nine in ten parents said there were significant differences

Answer 1

approach to

to是介词,后面跟名词或ing 形式.

AB错.

their approach 是单数,所以,后面

compared with _the approach__ of their parents.

指代这个"the approach"的词,自然也是单数,用that ,而不用those.

十分之九的家长说,他们教育子女的方法,跟他们父母的相比,有很大的不同(字面:许多不同之处).