题干

Though the medicine for my disease______, I should often______ at home or in the open air.
A.works out; work out B.is working; work out
C.is working out; work D.works; work
上一题 下一题 0.64难度 单项选择 更新时间:2013-03-06 10:27:12

答案(点此获取答案解析)