Her mother has been ill（） she came to Beijing last week A.since _英语解答

Her mother has been ill（） she came to Beijing last week A.since B.as C.until D.When

人气：412 ℃　时间：2019-09-27 12:47:44

解答

应该选 A
现在完成时 +since +一般过去时
自从上周她来北京以来她妈妈就病了.