问题
选择题
He feels that his health ____ owing to ____ a long walk every other day.
A．is improving; taking
B．has been improved; being taken
C．improved; taken
D．is improving; have taken
答案
答案：A
他觉得每隔一天的长距离散步使自己的健康状况每天都在改善。owing to的to是介词，后面要加名词或动名词，而他散步，是主动的动作，故选A。