He was fired ____his carelessness and laziness.

A.because of　　　　B.because　　　　C.thanks to　　　D.since

He was fired________his carelessness and laziness.

A.because of　　 B.because　　 C.thanks to 　　 D.since

He was fired 　　 his carelessness and laziness.

A.because of　　　　B.because　　　　C.thanks to　　　D.since

He was fired___________ his carelessness and laziness. 【陕西西安一中2010-2011学年高三下学期综合冲刺卷】【介词短语】