—Do you often help your cousin with his English?
—No. He learns English .
A. by himself
B. for himself
C. himself
D. on himself
网友回答
(答案→)A. by himself
B. for himself
C. himself
D. on himself
解析：句意：你常常帮助你的表弟学习英语吗？——不，他自学英语。Learn…… by oneself自学……，故选A。