（ ）Mrs Brown with her daughter ______back to London for a holiday.
A.have gone B.has been C.has gone D.have been
個人覺得選C,意為回倫敦度假,但是答案為B,想請教英語高手這個答案哪一個更好.
答：C
譯：布朗夫人與其女兒已經(jīng)回倫敦度假去了.
析：此題考主謂一致,真主為Mrs.Brown,排除AD
如沒有關(guān)鍵詞back,和for a holiday,則BC皆可：
B.Mrs Brown with her daughter has been to London .母女倆去過倫敦.（現(xiàn)不在倫敦）
C.Mrs Brown with her daughter has gone to London .母女倆已經(jīng)去了倫敦.（現(xiàn)不在本地）
加了兩個關(guān)鍵詞后,則B不如C佳.但B免強能說得過去.
B.Mrs Brown with her daughter has been back to London for a holiday.母女倆已經(jīng)回倫敦度假過了.（現(xiàn)不在倫敦）這個back就不太好說了.因為她們又回來了.到底去哪里算back?