下列词语中有关字的读音，与所给注音全都相同的一组是()。

A．空kōng——空腹；架空；空洞；司空见惯

B．种zhōng——变种；品种；种子；刀耕火种

C．劲jìn——劲头；鼓劲；苍劲；道劲有力

D．占zhàn——占用；占据；占卜；独占鳌头

My father admitted that when          comes to pop music, he had little knowledge of it.

A．he

B．that

C．this

D．it