Ever since my grandparents moved to the countryside a year ago ,they _______better health.A.are enjoying B.have been enjoyingC.had been enjoying Dhad enjoyed

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Ever since my grandparents moved to the countryside a year ago ,they _______better health.A.are enjoying B.have been enjoyingC.had been enjoying Dhad enjoyed

Ever since my grandparents moved to the countryside a year ago ,they _______better health.A.are enjoying B.have been enjoyingC.had been enjoying Dhad enjoyed
Ever since my grandparents moved to the countryside a year ago ,they _______better health.
A.are enjoying B.have been enjoying
C.had been enjoying Dhad enjoyed

Ever since my grandparents moved to the countryside a year ago ,they _______better health.A.are enjoying B.have been enjoyingC.had been enjoying Dhad enjoyed
B
这句话是说,自从我祖父母一年前搬去乡下,他们的身体就变好了.
有ever since提示,并且前半句用的是过去式,所以后面应该是用现在完成进行时,表示身体好了的情况一直持续到现在.

B.have been enjoying
现在完成进行时
用法:动作从过去开始,一直持续到现在,而且还有可能再继续下去。

选b,句意为:自从我爷爷奶奶一年前搬到乡下住的时候,他们一直保持健康。evere since是自从,时间为一年前,持续到现在,根据句意,应该是现在完成进行时!其他三项套进句子均不合适!