The headmaster decided to have a word with whoever is ________ this matter.

The headmaster decided to have a word with whoever is ________ this matter.

A.responsible for

B.in the charge of

C.operated

D.connected for

答案及解析： A

解析：

be responsible for+名词/代词/动名词，“对……负责”。注意积累相关短语：have the responsibility for对……有责任；对……负责。