问题
选择题
After ________ his right arm, he keep on ________ with his left arm.
A．lose; write
B．losing; writing
C．losing; write
D．lose; writing
答案
答案：B
题目分析：句意：他失去了他的右胳膊之后，他继续用左胳膊鞋子。介词after之后接名词，代词或动名词doing做宾语，故排除AD两项；介词on后的宾语用动名词doing，故选B。