【题目】His spare time________use of to learn English________his poor English.
A.has been made , becauseB.has been made , because of
C.has made , becauseD.has made , because of
在线课程【答案】B
【解析】
考查语态和介词短语。句意：由于他英语不好，他的业余时间都被用来学英语了。“业余时间”和“用来”之间是被动关系，用现在完成时的被动语态；because后接句子。because of后面接名词，代词或者动名词，故选B。